mirror of
git://sourceware.org/git/lvm2.git
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1411 lines
70 KiB
C
1411 lines
70 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2016 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*
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* Put all long args that don't have a corresponding short option first.
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*/
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/* *INDENT-OFF* */
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arg(ARG_UNUSED, '-', "", 0, 0, 0, NULL) /* place holder for unused 0 value */
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arg(abort_ARG, '\0', "abort", 0, 0, 0,
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"#pvmove\n"
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"Abort any pvmove operations in progress. If a pvmove was started\n"
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"with the --atomic option, then all LVs will remain on the source PV.\n"
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"Otherwise, segments that have been moved will remain on the\n"
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"destination PV, while unmoved segments will remain on the source PV.\n"
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"#lvpoll\n"
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"Stop processing a poll operation in lvmpolld.\n")
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arg(activationmode_ARG, '\0', "activationmode", activationmode_VAL, 0, 0,
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"Determines if LV activation is allowed when PVs are missing,\n"
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"e.g. because of a device failure.\n"
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"\\fBcomplete\\fP only allows LVs with no missing PVs to be activated,\n"
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"and is the most restrictive mode.\n"
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"\\fBdegraded\\fP allows RAID LVs with missing PVs to be activated.\n"
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"(This does not include the \"mirror\" type, see \"raid1\" instead.)\n"
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"\\fBpartial\\fP allows any LV with missing PVs to be activated, and\n"
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"should only be used for recovery or repair.\n"
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"For default, see lvm.conf/activation_mode.\n")
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arg(addtag_ARG, '\0', "addtag", tag_VAL, ARG_GROUPABLE, 0,
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"Adds a tag to a PV, VG or LV. This option can be repeated to add\n"
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"multiple tags at once. See lvm(8) for information about tags.\n")
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arg(aligned_ARG, '\0', "aligned", 0, 0, 0,
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"Use with --separator to align the output columns\n")
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arg(alloc_ARG, '\0', "alloc", alloc_VAL, 0, 0,
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"Determines the allocation policy when a command needs to allocate\n"
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"Physical Extents (PEs) from the VG. Each VG and LV has an allocation policy\n"
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"which can be changed with vgchange/lvchange, or overriden on the\n"
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"command line.\n"
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"\\fBnormal\\fP applies common sense rules such as not placing parallel stripes\n"
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"on the same PV.\n"
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"\\fBinherit\\fP applies the VG policy to an LV.\n"
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"\\fBcontiguous\\fP requires new PEs be placed adjacent to existing PEs.\n"
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"\\fBcling\\fP places new PEs on the same PV as existing PEs in the same\n"
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"stripe of the LV.\n"
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"If there are sufficient PEs for an allocation, but normal does not\n"
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"use them, \\fBanywhere\\fP will use them even if it reduces performance,\n"
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"e.g. by placing two stripes on the same PV.\n"
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"Optional positional PV args on the command line can also be used to limit\n"
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"which PVs the command will use for allocation.\n"
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"See lvm(8) for more information about allocation.\n")
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arg(atomic_ARG, '\0', "atomic", 0, 0, 0,
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"Makes a pvmove operation atomic, ensuring that all affected LVs are\n"
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"moved to the destination PV, or none are if the operation is aborted.\n")
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arg(atversion_ARG, '\0', "atversion", string_VAL, 0, 0,
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"Specify an LVM version in x.y.z format where x is the major version,\n"
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"the y is the minor version and z is the patchlevel (e.g. 2.2.106).\n"
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"When configuration is displayed, the configuration settings recognized\n"
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"at this LVM version will be considered only. This can be used\n"
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"to display a configuration that a certain LVM version understands and\n"
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"which does not contain any newer settings for which LVM would\n"
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"issue a warning message when checking the configuration.\n")
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arg(binary_ARG, '\0', "binary", 0, 0, 0,
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"Use binary values \"0\" or \"1\" instead of descriptive literal values\n"
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"for columns that have exactly two valid values to report (not counting\n"
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"the \"unknown\" value which denotes that the value could not be determined).\n")
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arg(bootloaderareasize_ARG, '\0', "bootloaderareasize", sizemb_VAL, 0, 0,
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"Create a separate bootloader area of specified size besides PV's data\n"
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"area. The bootloader area is an area of reserved space on the PV from\n"
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"which LVM will not allocate any extents and it's kept untouched. This is\n"
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"primarily aimed for use with bootloaders to embed their own data or metadata.\n"
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"The start of the bootloader area is always aligned, see also --dataalignment\n"
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"and --dataalignmentoffset. The bootloader area size may eventually\n"
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"end up increased due to the alignment, but it's never less than the\n"
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"size that is requested. To see the bootloader area start and size of\n"
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"an existing PV use pvs -o +pv_ba_start,pv_ba_size.\n")
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arg(cache_long_ARG, '\0', "cache", 0, 0, 0,
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"#pvscan\n"
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"Scan one or more devices and send the metadata to lvmetad.\n"
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"#vgscan\n"
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"Scan all devices and send the metadata to lvmetad.\n"
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"#lvscan\n"
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"Scan the devices used by an LV and send the metadata to lvmetad.\n")
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arg(cachemode_ARG, '\0', "cachemode", cachemode_VAL, 0, 0,
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"Specifies when writes to a cache LV should be considered complete.\n"
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"\\fBwriteback\\fP considers a write complete as soon as it is\n"
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"stored in the cache pool.\n"
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"\\fBwritethough\\fP considers a write complete only when it has\n"
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"been stored in both the cache pool and on the origin LV.\n"
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"While writethrough may be slower for writes, it is more\n"
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"resilient if something should happen to a device associated with the\n"
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"cache pool LV. With writethrough, all reads are served\n"
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"from the origin LV (all reads miss the cache) and all writes are\n"
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"forwarded to the origin LV; additionally, write hits cause cache\n"
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"block invalidates. See lvmcache(7) for more information.\n")
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arg(cachepool_ARG, '\0', "cachepool", lv_VAL, 0, 0,
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"The name of a cache pool LV.\n")
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arg(commandprofile_ARG, '\0', "commandprofile", string_VAL, 0, 0,
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"The command profile to use for command configuration.\n"
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"See lvm.conf(5) for more information about profiles.\n")
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arg(config_ARG, '\0', "config", string_VAL, 0, 0,
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"Config settings for the command. These override lvm.conf settings.\n"
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"The String arg uses the same format as lvm.conf,\n"
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"or may use section/field syntax.\n"
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"See lvm.conf(5) for more information about config.\n")
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arg(configreport_ARG, '\0', "configreport", configreport_VAL, ARG_GROUPABLE, 1,
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"See lvmreport(7).\n")
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arg(configtype_ARG, '\0', "typeconfig", configtype_VAL, 0, 0,
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"See lvmreport(7).\n")
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arg(dataalignment_ARG, '\0', "dataalignment", sizekb_VAL, 0, 0,
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"Align the start of the data to a multiple of this number.\n"
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"Also specify an appropriate Physical Extent size when creating a VG.\n"
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"To see the location of the first Physical Extent of an existing PV,\n"
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"use pvs -o +pe_start. In addition, it may be shifted by an alignment offset.\n"
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"See lvm.conf/data_alignment_offset_detection and --dataalignmentoffset.\n")
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arg(dataalignmentoffset_ARG, '\0', "dataalignmentoffset", sizekb_VAL, 0, 0,
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"Shift the start of the data area by this additional offset.\n")
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arg(deltag_ARG, '\0', "deltag", tag_VAL, ARG_GROUPABLE, 0,
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"Deletes a tag from a PV, VG or LV. This option can be repeated to delete\n"
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"multiple tags at once. See lvm(8) for information about tags.\n")
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arg(detachprofile_ARG, '\0', "detachprofile", 0, 0, 0,
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"Detaches a metadata profile from a VG or LV.\n"
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"See lvm.conf(5) for more information about profiles.\n")
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arg(discards_ARG, '\0', "discards", discards_VAL, 0, 0,
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"Specifies how the device-mapper thin pool layer in the kernel should\n"
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"handle discards.\n"
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"\\fBignore\\fP causes the thin pool to ignore discards.\n"
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"\\fBnopassdown\\fP causes the thin pool to process discards itself to\n"
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"allow reuse of unneeded extents in the thin pool.\n"
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"\\fBpassdown\\fP causes the thin pool to process discards itself\n"
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"(like nopassdown) and pass the discards to the underlying device.\n")
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arg(driverloaded_ARG, '\0', "driverloaded", bool_VAL, 0, 0,
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"If set to no, the command will not attempt to use device-mapper.\n"
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"For testing and debugging.\n")
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arg(errorwhenfull_ARG, '\0', "errorwhenfull", bool_VAL, 0, 0,
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"Specifies thin pool behavior when data space is exhausted.\n"
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"When yes, device-mapper will immediately return an error\n"
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"when a thin pool is full and an I/O request requires space.\n"
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"When no, device-mapper will queue these I/O requests for a\n"
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"period of time to allow the thin pool to be extended.\n"
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"Errors are returned if no space is available after the timeout.\n"
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"(Also see dm-thin-pool kernel module option no_space_timeout.)\n")
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arg(force_long_ARG, '\0', "force", 0, ARG_COUNTABLE, 0,
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"Force metadata restore even with thin pool LVs.\n"
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"Use with extreme caution. Most changes to thin metadata\n"
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"cannot be reverted.\n"
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"You may lose data if you restore metadata that does not match the\n"
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"thin pool kernel metadata precisely.\n")
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arg(foreign_ARG, '\0', "foreign", 0, 0, 0,
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"Report/display foreign VGs that would otherwise be skipped.\n"
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"See lvmsystemid(7) for more information about foreign VGs.\n")
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arg(handlemissingpvs_ARG, '\0', "handlemissingpvs", 0, 0, 0,
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"Allows a polling operation to continue when PVs are missing,\n"
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"e.g. for repairs due to faulty devices.\n")
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arg(ignoreadvanced_ARG, '\0', "ignoreadvanced", 0, 0, 0,
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"Exclude advanced configuration settings from the output.\n")
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arg(ignorelocal_ARG, '\0', "ignorelocal", 0, 0, 0,
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"Ignore local section.\n")
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arg(ignorelockingfailure_ARG, '\0', "ignorelockingfailure", 0, 0, 0,
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"Allows a command to continue with read-only metadata\n"
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"operations after locking failures.\n")
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arg(ignoremonitoring_ARG, '\0', "ignoremonitoring", 0, 0, 0,
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"Do not interact with dmeventd unless --monitor is specified.\n"
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"Do not use this if dmeventd is already monitoring a device.\n")
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arg(ignoreskippedcluster_ARG, '\0', "ignoreskippedcluster", 0, 0, 0,
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"Use to avoid exiting with an non-zero status code if the command is run\n"
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"without clustered locking and clustered VGs are skipped.\n")
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arg(ignoreunsupported_ARG, '\0', "ignoreunsupported", 0, 0, 0,
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"Exclude unsupported configuration settings from the output. These settings are\n"
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"either used for debugging and development purposes only or their support is not\n"
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"yet complete and they are not meant to be used in production. The \\fBcurrent\\fP\n"
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"and \\fBdiff\\fP types include unsupported settings in their output by default,\n"
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"all the other types ignore unsupported settings.\n")
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arg(labelsector_ARG, '\0', "labelsector", number_VAL, 0, 0,
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"By default the PV is labelled with an LVM2 identifier in its second\n"
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"sector (sector 1). This lets you use a different sector near the\n"
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"start of the disk (between 0 and 3 inclusive - see LABEL_SCAN_SECTORS\n"
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"in the source). Use with care.\n")
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arg(lockopt_ARG, '\0', "lockopt", string_VAL, 0, 0,
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"Used to pass options for special cases to lvmlockd.\n"
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"See lvmlockd(8) for more information.\n")
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arg(lockstart_ARG, '\0', "lockstart", 0, 0, 0,
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"Start the lockspace of a shared VG in lvmlockd.\n"
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"lvmlockd locks becomes available for the VG, allowing LVM to use the VG.\n"
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"See lvmlockd(8) for more information.\n")
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arg(lockstop_ARG, '\0', "lockstop", 0, 0, 0,
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"Stop the lockspace of a shared VG in lvmlockd.\n"
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"lvmlockd locks become unavailable for the VG, preventing LVM from using the VG.\n"
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"See lvmlockd(8) for more information.\n")
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arg(locktype_ARG, '\0', "locktype", locktype_VAL, 0, 0,
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"#vgchange\n"
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"Change the VG lock type to or from a shared lock type used with lvmlockd.\n"
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"See lvmlockd(8) for more information.\n"
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"#vgcreate\n"
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"Specify the VG lock type directly in place of using --shared.\n"
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"See lvmlockd(8) for more information.\n")
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arg(logonly_ARG, '\0', "logonly", 0, 0, 0,
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"Suppress command report and display only log report.\n")
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arg(longhelp_ARG, '\0', "longhelp", 0, 0, 0,
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"Display long help text.\n")
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arg(maxrecoveryrate_ARG, '\0', "maxrecoveryrate", sizekb_VAL, 0, 0,
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"Sets the maximum recovery rate for a RAID LV. The rate value\n"
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"is an amount of data per second for each device in the array.\n"
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"Setting the rate to 0 means it will be unbounded.\n")
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arg(merge_ARG, '\0', "merge", 0, 0, 0,
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"An alias for --mergethin, --mergemirrors, or --mergesnapshot,\n"
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"depending on the type of LV.\n")
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arg(mergemirrors_ARG, '\0', "mergemirrors", 0, 0, 0,
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"Merge LV images that were split from a raid1 LV.\n"
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"See --splitmirrors with --trackchanges.\n")
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arg(mergesnapshot_ARG, '\0', "mergesnapshot", 0, 0, 0,
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"Merge COW snapshot LV into its origin.\n"
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"When merging a snapshot, if both the origin and snapshot LVs are not open,\n"
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"the merge will start immediately. Otherwise, the merge will start the\n"
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"first time either the origin or snapshot LV are activated and both are\n"
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"closed. Merging a snapshot into an origin that cannot be closed, for\n"
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"example a root filesystem, is deferred until the next time the origin\n"
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"volume is activated. When merging starts, the resulting LV will have the\n"
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"origin's name, minor number and UUID. While the merge is in progress,\n"
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"reads or writes to the origin appear as being directed to the snapshot\n"
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"being merged. When the merge finishes, the merged snapshot is removed.\n"
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"Multiple snapshots may be specified on the command line or a @tag may be\n"
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"used to specify multiple snapshots be merged to their respective origin.\n")
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arg(mergethin_ARG, '\0', "mergethin", 0, 0, 0,
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"Merge thin LV into its origin LV.\n"
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"The origin thin LV takes the content of the thin snapshot,\n"
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"and the thin snapshot LV is removed.\n")
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arg(mergedconfig_ARG, '\0', "mergedconfig", 0, 0, 0,
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"When the command is run with --config\n"
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"and/or --commandprofile (or using LVM_COMMAND_PROFILE\n"
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"environment variable), --profile, or --metadataprofile,\n"
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"merge all the contents of the \"config cascade\" before displaying it.\n"
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"Without merging, only the configuration at the front of the\n"
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"cascade is displayed.\n"
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"See lvm.conf(5) for more information about config.\n")
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arg(metadataignore_ARG, '\0', "metadataignore", bool_VAL, 0, 0,
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"Specifies the metadataignore property of a PV.\n"
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"If yes, metadata areas on the PV are ignored, and lvm will\n"
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"not store metadata in the metadata areas of the PV.\n"
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"If no, lvm will store metadata on the PV.\n")
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arg(metadataprofile_ARG, '\0', "metadataprofile", string_VAL, 0, 0,
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"The metadata profile to use for command configuration.\n"
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"See lvm.conf(5) for more information about profiles.\n")
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arg(metadatasize_ARG, '\0', "metadatasize", sizemb_VAL, 0, 0,
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"The approximate amount of space used for each VG metadata area.\n"
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"The size may be rounded.\n")
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arg(minor_ARG, '\0', "minor", number_VAL, ARG_GROUPABLE, 0,
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"#lvcreate\n"
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"#lvchange\n"
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"Sets the minor number of an LV block device.\n"
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"#pvscan\n"
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"The minor number of a device.\n")
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arg(minrecoveryrate_ARG, '\0', "minrecoveryrate", sizekb_VAL, 0, 0,
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"Sets the minimum recovery rate for a RAID LV. The rate value\n"
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"is an amount of data per second for each device in the array.\n"
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"Setting the rate to 0 means it will be unbounded.\n")
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arg(mirrorlog_ARG, '\0', "mirrorlog", mirrorlog_VAL, 0, 0,
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"Specifies the type of mirror log for LVs with the \"mirror\" type\n"
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"(does not apply to the \"raid1\" type.)\n"
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"\\fBdisk\\fP is a persistent log and requires a small amount of\n"
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"storage space, usually on a separate device from the data being mirrored.\n"
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"\\fBcore\\fP is not persistent; the log is kept only in memory.\n"
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"In this case, the mirror must be synchronized (by copying LV data from\n"
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"the first device to others) each time the LV is activated, e.g. after reboot.\n"
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"\\fBmirrored\\fP is a persistent log that is itself mirrored.\n")
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arg(mirrorsonly_ARG, '\0', "mirrorsonly", 0, 0, 0,
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"Only remove missing PVs from mirror LVs.\n")
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arg(mknodes_ARG, '\0', "mknodes", 0, 0, 0,
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"Also checks the LVM special files in /dev that are needed for active\n"
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"LVs and creates any missing ones and removes unused ones.\n")
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arg(monitor_ARG, '\0', "monitor", bool_VAL, 0, 0,
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"Start (yes) or stop (no) monitoring an LV with dmeventd.\n"
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"dmeventd monitors kernel events for an LV, and performs\n"
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"automated maintenance for the LV in reponse to specific events.\n"
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"See dmeventd(8) for more information.\n")
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arg(nameprefixes_ARG, '\0', "nameprefixes", 0, 0, 0,
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"Add an \"LVM2_\" prefix plus the field name to the output. Useful\n"
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"with --noheadings to produce a list of field=value pairs that can\n"
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"be used to set environment variables (for example, in udev rules).\n")
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arg(noheadings_ARG, '\0', "noheadings", 0, 0, 0,
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"Suppress the headings line that is normally the first line of output.\n"
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"Useful if grepping the output.\n")
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arg(nohistory_ARG, '\0', "nohistory", 0, 0, 0,
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"Do not record history of LVs being removed.\n"
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"This has no effect unless the configuration setting\n"
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"metadata/record_lvs_history is enabled.\n")
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arg(nolocking_ARG, '\0', "nolocking", 0, 0, 0,
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"Disable locking.\n")
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arg(norestorefile_ARG, '\0', "norestorefile", 0, 0, 0,
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"In conjunction with --uuid, this allows a uuid to be specified\n"
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"without also requiring that a backup of the metadata be provided.\n")
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arg(nosuffix_ARG, '\0', "nosuffix", 0, 0, 0,
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"Suppress the suffix on output sizes. Use with --units\n"
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"(except h and H) if processing the output.\n")
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arg(nosync_ARG, '\0', "nosync", 0, 0, 0,
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"Causes the creation of mirror, raid1, raid4, raid5 and raid10 to skip the\n"
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"initial synchronization. In case of mirror, raid1 and raid10, any data\n"
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"written afterwards will be mirrored, but the original contents will not be\n"
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"copied. In case of raid4 and raid5, no parity blocks will be written,\n"
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"though any data written afterwards will cause parity blocks to be stored.\n"
|
|
"This is useful for skipping a potentially long and resource intensive initial\n"
|
|
"sync of an empty mirror/raid1/raid4/raid5 and raid10 LV.\n"
|
|
"This option is not valid for raid6, because raid6 relies on proper parity\n"
|
|
"(P and Q Syndromes) being created during initial synchronization in order\n"
|
|
"to reconstruct proper user date in case of device failures.\n"
|
|
"raid0 and raid0_meta do not provide any data copies or parity support\n"
|
|
"and thus do not support initial synchronization.\n")
|
|
|
|
arg(notifydbus_ARG, '\0', "notifydbus", 0, 0, 0,
|
|
"Send a notification to D-Bus. The command will exit with an error\n"
|
|
"if LVM is not built with support for D-Bus notification, or if the\n"
|
|
"notify_dbus config setting is disabled.\n")
|
|
|
|
arg(noudevsync_ARG, '\0', "noudevsync", 0, 0, 0,
|
|
"Disables udev synchronisation. The process will not wait for notification\n"
|
|
"from udev. It will continue irrespective of any possible udev processing\n"
|
|
"in the background. Only use this if udev is not running or has rules that\n"
|
|
"ignore the devices LVM creates.\n")
|
|
|
|
arg(originname_ARG, '\0', "originname", lv_VAL, 0, 0,
|
|
"Specifies the name to use for the external origin LV when converting an LV\n"
|
|
"to a thin LV. The LV being converted becomes a read-only external origin\n"
|
|
"with this name.\n")
|
|
|
|
arg(physicalvolumesize_ARG, '\0', "setphysicalvolumesize", sizemb_VAL, 0, 0,
|
|
"Overrides the automatically detected size of the PV.\n"
|
|
"Use with care, or prior to reducing the physical size of the device.\n")
|
|
|
|
arg(poll_ARG, '\0', "poll", bool_VAL, 0, 0,
|
|
"When yes, start the background transformation of an LV.\n"
|
|
"An incomplete transformation, e.g. pvmove or lvconvert interrupted\n"
|
|
"by reboot or crash, can be restarted from the last checkpoint with --poll y.\n"
|
|
"When no, background transformation of an LV will not occur, and the\n"
|
|
"transformation will not complete. It may not be appropriate to immediately\n"
|
|
"poll an LV after activation, in which case --poll n can be used to defer\n"
|
|
"polling until a later --poll y command.\n")
|
|
|
|
arg(polloperation_ARG, '\0', "polloperation", polloperation_VAL, 0, 0,
|
|
"The command to perform from lvmpolld.\n")
|
|
|
|
/* Not used. */
|
|
arg(pooldatasize_ARG, '\0', "pooldatasize", sizemb_VAL, 0, 0, NULL)
|
|
|
|
arg(poolmetadata_ARG, '\0', "poolmetadata", lv_VAL, 0, 0,
|
|
"The name of a an LV to use for storing pool metadata.\n")
|
|
|
|
arg(poolmetadatasize_ARG, '\0', "poolmetadatasize", sizemb_VAL, 0, 0,
|
|
"The size of the pool metadata LV created by the command.\n")
|
|
|
|
arg(poolmetadataspare_ARG, '\0', "poolmetadataspare", bool_VAL, 0, 0,
|
|
"Enable or disable the automatic creation and management of a\n"
|
|
"spare pool metadata LV in the VG. A spare metadata LV is reserved\n"
|
|
"space that can be used when repairing a pool.\n")
|
|
|
|
arg(profile_ARG, '\0', "profile", string_VAL, 0, 0,
|
|
"An alias for --commandprofile or --metadataprofile, depending\n"
|
|
"on the command.\n")
|
|
|
|
arg(pvmetadatacopies_ARG, '\0', "pvmetadatacopies", pvmetadatacopies_VAL, 0, 0,
|
|
"The number of metadata areas to set aside on a PV for storing VG metadata.\n"
|
|
"When 2, one copy of the VG metadata is stored at the front of the PV\n"
|
|
"and a second copy is stored at the end.\n"
|
|
"When 1, one copy of the VG metadata is stored at the front of the PV\n"
|
|
"(starting in the 5th sector).\n"
|
|
"When 0, no copies of the VG metadata are stored on the given PV.\n"
|
|
"This may be useful in VGs containing many PVs (this places limitations\n"
|
|
"on the ability to use vgsplit later.)\n")
|
|
|
|
arg(readonly_ARG, '\0', "readonly", 0, 0, 0,
|
|
"Run the command in a special read-only mode which will read on-disk\n"
|
|
"metadata without needing to take any locks. This can be used to peek\n"
|
|
"inside metadata used by a virtual machine image while the virtual\n"
|
|
"machine is running.\n"
|
|
"It can also be used to peek inside the metadata of clustered VGs\n"
|
|
"when clustered locking is not configured or running. No attempt\n"
|
|
"will be made to communicate with the device-mapper kernel driver, so\n"
|
|
"this option is unable to report whether or not LVs are\n"
|
|
"actually in use.\n")
|
|
|
|
arg(refresh_ARG, '\0', "refresh", 0, 0, 0,
|
|
"If the LV is active, reload its metadata.\n"
|
|
"This is not necessary in normal operation, but may be useful\n"
|
|
"if something has gone wrong, or if some form of manual LV\n"
|
|
"sharing is being used.\n")
|
|
|
|
arg(removemissing_ARG, '\0', "removemissing", 0, 0, 0,
|
|
"Removes all missing PVs from the VG, if there are no LVs allocated\n"
|
|
"on them. This resumes normal operation of the VG (new LVs may again\n"
|
|
"be created, changed and so on).\n"
|
|
"If this is not possible because LVs are referencing the missing PVs,\n"
|
|
"this option can be combined with --force to have the command remove\n"
|
|
"any partial LVs. In this case, any LVs and dependent snapshots that\n"
|
|
"were partly on the missing disks are removed completely, including\n"
|
|
"those parts on disks that are still present.\n"
|
|
"If LVs spanned several disks, including ones that are lost, salvaging\n"
|
|
"some data first may be possible by activating LVs in partial mode.\n")
|
|
|
|
arg(rebuild_ARG, '\0', "rebuild", pv_VAL, ARG_GROUPABLE, 0,
|
|
"Selects a PV to rebuild in a raid LV. Multiple PVs can be rebuilt by\n"
|
|
"repeating this option.\n"
|
|
"Use this option in place of --resync or --syncaction repair when the\n"
|
|
"PVs with corrupted data are known, and their data should be reconstructed\n"
|
|
"rather than reconstructing default (rotating) data.\n")
|
|
|
|
arg(repair_ARG, '\0', "repair", 0, 0, 0,
|
|
"Replace failed PVs in a raid or mirror LV, or run a repair\n"
|
|
"utility on a thin pool.\n")
|
|
|
|
arg(replace_ARG, '\0', "replace", pv_VAL, ARG_GROUPABLE, 0,
|
|
"Replace a specific PV in a raid LV with another PV.\n"
|
|
"The new PV to use can be optionally specified after the LV.\n"
|
|
"Multiple PVs can be replaced by repeating this option.\n")
|
|
|
|
arg(reportformat_ARG, '\0', "reportformat", reportformat_VAL, 0, 0,
|
|
"Overrides current output format for reports which is defined globally by\n"
|
|
"the report/output_format setting in lvm.conf.\n"
|
|
"\\fBbasic\\fP is the original format with columns and rows.\n"
|
|
"If there is more than one report per command, each report is prefixed\n"
|
|
"with the report name for identification. \\fBjson\\fP produces report\n"
|
|
"output in JSON format.\n")
|
|
|
|
arg(restorefile_ARG, '\0', "restorefile", string_VAL, 0, 0,
|
|
"In conjunction with --uuid, this reads the file (produced by\n"
|
|
"vgcfgbackup), extracts the location and size of the data on the PV,\n"
|
|
"and ensures that the metadata produced by the program is consistent\n"
|
|
"with the contents of the file, i.e. the physical extents will be in\n"
|
|
"the same place and not be overwritten by new metadata. This provides\n"
|
|
"a mechanism to upgrade the metadata format or to add/remove metadata\n"
|
|
"areas. Use with care.\n")
|
|
|
|
arg(restoremissing_ARG, '\0', "restoremissing", 0, 0, 0,
|
|
"Add a PV back into a VG after the PV was missing and then returned,\n"
|
|
"e.g. due to a transient failure. The PV is not reinitialized.\n")
|
|
|
|
arg(resync_ARG, '\0', "resync", 0, 0, 0,
|
|
"Initiates mirror synchronization. Synchronization generally happens\n"
|
|
"automatically, but this option forces it to run.\n"
|
|
"Also see --rebuild to synchronize a specific PV.\n"
|
|
"During synchronization, data is read from the primary mirror device\n"
|
|
"and copied to the others. This can take considerable time, during\n"
|
|
"which the LV is without a complete redundant copy of the data.\n")
|
|
|
|
arg(rows_ARG, '\0', "rows", 0, 0, 0,
|
|
"Output columns as rows.\n")
|
|
|
|
arg(segments_ARG, '\0', "segments", 0, 0, 0,
|
|
"#pvs\n"
|
|
"Produces one line of output for each contiguous allocation of space on each\n"
|
|
"PV, showing the start (pvseg_start) and length (pvseg_size) in units of\n"
|
|
"physical extents.\n"
|
|
"#lvs\n"
|
|
"Use default columns that emphasize segment information.\n")
|
|
|
|
arg(separator_ARG, '\0', "separator", string_VAL, 0, 0,
|
|
"String to use to separate each column. Useful if grepping the output.\n")
|
|
|
|
arg(shared_ARG, '\0', "shared", 0, 0, 0,
|
|
"#vgcreate\n"
|
|
"Create a shared VG using lvmlockd if LVM is compiled with lockd support.\n"
|
|
"lvmlockd will select lock type sanlock or dlm depending on which lock\n"
|
|
"manager is running. This allows multiple hosts to share a VG on shared\n"
|
|
"devices. lvmlockd and a lock manager must be configured and running.\n"
|
|
"(A shared VG using lvmlockd is different from a clustered VG using clvmd.)\n"
|
|
"See lvmlockd(8) for more information about shared VGs.\n"
|
|
"#vgs\n"
|
|
"#lvs\n"
|
|
"#pvs\n"
|
|
"#fullreport\n"
|
|
"#vgdisplay\n"
|
|
"#lvdisplay\n"
|
|
"#pvdisplay\n"
|
|
"Report/display shared VGs that would otherwise be skipped when\n"
|
|
"lvmlockd is not being used on the host.\n"
|
|
"See lvmlockd(8) for more information about shared VGs.\n")
|
|
|
|
arg(sinceversion_ARG, '\0', "sinceversion", string_VAL, 0, 0,
|
|
"Specify an LVM version in x.y.z format where x is the major version,\n"
|
|
"the y is the minor version and z is the patchlevel (e.g. 2.2.106).\n"
|
|
"This option is currently applicable only with --typeconfig new\n"
|
|
"to display all configuration settings introduced since given version.\n")
|
|
|
|
arg(splitcache_ARG, '\0', "splitcache", 0, 0, 0,
|
|
"Separates a cache pool from a cache LV, and keeps the unused cache pool LV.\n"
|
|
"Before the separation, the cache is flushed. Also see --uncache.\n")
|
|
|
|
arg(splitmirrors_ARG, '\0', "splitmirrors", number_VAL, 0, 0,
|
|
"Splits the specified number of images from a raid1 or mirror LV\n"
|
|
"and uses them to create a new LV. If --trackchanges is also specified,\n"
|
|
"changes to the raid1 LV are tracked while the split LV remains detached.\n")
|
|
|
|
arg(splitsnapshot_ARG, '\0', "splitsnapshot", 0, 0, 0,
|
|
"Separates a COW snapshot from its origin LV. The LV that is split off\n"
|
|
"contains the chunks that differ from the origin LV along with metadata\n"
|
|
"describing them. This LV can be wiped and then destroyed with lvremove.\n")
|
|
|
|
arg(showdeprecated_ARG, '\0', "showdeprecated", 0, 0, 0,
|
|
"Include deprecated configuration settings in the output. These settings\n"
|
|
"are deprecated after a certain version. If a concrete version is specified\n"
|
|
"with --atversion, deprecated settings are automatically included\n"
|
|
"if the specified version is lower than the version in which the settings were\n"
|
|
"deprecated. The current and diff types include deprecated settings\n"
|
|
"in their output by default, all the other types ignore deprecated settings.\n")
|
|
|
|
arg(showunsupported_ARG, '\0', "showunsupported", 0, 0, 0,
|
|
"Include unsupported configuration settings in the output. These settings\n"
|
|
"are either used for debugging or development purposes only, or their support\n"
|
|
"is not yet complete and they are not meant to be used in production. The\n"
|
|
"current and diff types include unsupported settings in their\n"
|
|
"output by default, all the other types ignore unsupported settings.\n")
|
|
|
|
arg(startpoll_ARG, '\0', "startpoll", 0, 0, 0,
|
|
"Start polling an LV to continue processing a conversion.\n")
|
|
|
|
arg(stripes_long_ARG, '\0', "stripes", number_VAL, 0, 0,
|
|
"Specifies the number of stripes in a striped LV. This is the number of\n"
|
|
"PVs (devices) that a striped LV is spread across. Data that\n"
|
|
"appears sequential in the LV is spread across multiple devices in units of\n"
|
|
"the stripe size (see --stripesize). This does not apply to\n"
|
|
"existing allocated space, only newly allocated space can be striped.\n")
|
|
|
|
arg(swapmetadata_ARG, '\0', "swapmetadata", 0, 0, 0,
|
|
"Extracts the metadata LV from a pool and replaces it with another specified LV.\n"
|
|
"The extracted LV is preserved and given the name of the LV that replaced it.\n"
|
|
"Use for repair only. When the metadata LV is swapped out of the pool, it can\n"
|
|
"be activated directly and used with thin provisioning tools:\n"
|
|
"\\fBcache_dump\\fP(8), \\fBcache_repair\\fP(8), \\fBcache_restore\\fP(8),\n"
|
|
"\\fBthin_dump\\fP(8), \\fBthin_repair\\fP(8), \\fBthin_restore\\fP(8).\n")
|
|
|
|
arg(syncaction_ARG, '\0', "syncaction", syncaction_VAL, 0, 0,
|
|
"Initiate different types of RAID synchronization.\n"
|
|
"This causes the RAID LV to read all data and parity\n"
|
|
"blocks in the array and check for discrepancies\n"
|
|
"(mismatches between mirrors or incorrect parity values).\n"
|
|
"\\fBcheck\\fP will count but not correct discrepancies.\n"
|
|
"\\fBrepair\\fP will correct discrepancies.\n"
|
|
"See lvs for reporting discrepancies found or repaired.\n")
|
|
|
|
arg(sysinit_ARG, '\0', "sysinit", 0, 0, 0,
|
|
"Indicates that vgchange/lvchange is being invoked from early system initialisation\n"
|
|
"scripts (e.g. rc.sysinit or an initrd), before writable filesystems are\n"
|
|
"available. As such, some functionality needs to be disabled and this option\n"
|
|
"acts as a shortcut which selects an appropriate set of options. Currently,\n"
|
|
"this is equivalent to using --ignorelockingfailure, --ignoremonitoring,\n"
|
|
"--poll n, and setting env var LVM_SUPPRESS_LOCKING_FAILURE_MESSAGES.\n"
|
|
"When used in conjunction with lvmetad enabled and running,\n"
|
|
"vgchange/lvchange skip autoactivation, and defer to pvscan autoactivation.\n")
|
|
|
|
arg(systemid_ARG, '\0', "systemid", string_VAL, 0, 0,
|
|
"#vgcreate\n"
|
|
"Specifies the system ID that will be given to the new VG, overriding the\n"
|
|
"system ID of the host running the command. A VG is normally created\n"
|
|
"without this option, in which case the new VG is given the system ID of\n"
|
|
"the host creating it. Using this option requires caution because the\n"
|
|
"system ID of the new VG may not match the system ID of the host running\n"
|
|
"the command, leaving the VG inaccessible to the host.\n"
|
|
"See lvmsystemid(7) for more information.\n"
|
|
"#vgchange\n"
|
|
"Changes the system ID of the VG. Using this option requires caution\n"
|
|
"because the VG may become foreign to the host running the command,\n"
|
|
"leaving the host unable to access it.\n"
|
|
"See lvmsystemid(7) for more information.\n")
|
|
|
|
arg(thinpool_ARG, '\0', "thinpool", lv_VAL, 0, 0,
|
|
"The name of a thin pool LV.\n")
|
|
|
|
arg(trackchanges_ARG, '\0', "trackchanges", 0, 0, 0,
|
|
"Can be used with --splitmirrors on a raid1 LV. This causes\n"
|
|
"changes to the original raid1 LV to be tracked while the split images\n"
|
|
"remain detached. This allows the read-only detached image(s) to be\n"
|
|
"merged efficiently back into the raid1 LV later. Only the regions with\n"
|
|
"changed data are resynchronized during merge. (This option only applies\n"
|
|
"when using the raid1 LV type.)\n")
|
|
|
|
/* TODO: hide this? */
|
|
arg(trustcache_ARG, '\0', "trustcache", 0, 0, 0,
|
|
"Avoids certain device scanning during command processing. Do not use.\n")
|
|
|
|
arg(type_ARG, '\0', "type", segtype_VAL, 0, 0,
|
|
"Specifies an LV type, or \"segment type\".\n"
|
|
"See usage definitions for specific ways to use these types.\n"
|
|
"For more information about redundancy and performance (\\fBraid\\fP<N>, \\fBmirror\\fP, \\fBstriped\\fP, \\fBlinear\\fP) see \\fBlvmraid\\fP(7).\n"
|
|
"For thin provisioning (\\fBthin\\fP, \\fBthin-pool\\fP) see \\fBlvmthin\\fP(7).\n"
|
|
"For performance caching (\\fBcache\\fP, \\fBcache-pool\\fP) see \\fBlvmcache\\fP(7).\n"
|
|
"For copy-on-write snapshots (\\fBsnapshot\\fP) see usage definitions.\n"
|
|
"Several commands omit an explicit type option because the type\n"
|
|
"is inferred from other options or shortcuts\n"
|
|
"(e.g. --stripes, --mirrors, --snapshot, --virtualsize, --thin, --cache).\n"
|
|
"Use inferred types with care because it can lead to unexpected results.\n")
|
|
|
|
arg(unbuffered_ARG, '\0', "unbuffered", 0, 0, 0,
|
|
"Produce output immediately without sorting or aligning the columns properly.\n")
|
|
|
|
arg(uncache_ARG, '\0', "uncache", 0, 0, 0,
|
|
"Separates a cache pool from a cache LV, and deletes the unused cache pool LV.\n"
|
|
"Before the separation, the cache is flushed. Also see --splitcache.\n")
|
|
|
|
arg(cachepolicy_ARG, '\0', "cachepolicy", string_VAL, 0, 0,
|
|
"Specifies the cache policy for a cache LV.\n"
|
|
"See lvmcache(7) for more information.\n")
|
|
|
|
arg(cachesettings_ARG, '\0', "cachesettings", string_VAL, ARG_GROUPABLE, 0,
|
|
"Specifies tunable values for a cache LV in \"Key = Value\" form.\n"
|
|
"Repeat this option to specify multiple values.\n"
|
|
"(The default values should usually be adequate.)\n"
|
|
"The special string value \\fBdefault\\fP switches\n"
|
|
"settings back to their default kernel values and removes\n"
|
|
"them from the list of settings stored in LVM metadata.\n"
|
|
"See lvmcache(7) for more information.\n")
|
|
|
|
arg(unconfigured_ARG, '\0', "unconfigured", 0, 0, 0,
|
|
"Internal option used for generating config file during build.\n")
|
|
|
|
arg(units_ARG, '\0', "units", units_VAL, 0, 0,
|
|
"All sizes are output in these units:\n"
|
|
"human-(r)eadable with '<' rounding indicator,\n"
|
|
"(h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes,\n"
|
|
"(g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes.\n"
|
|
"Capitalise to use multiples of 1000 (S.I.) instead of 1024.\n"
|
|
"Custom units can be specified, e.g. --units 3M.\n")
|
|
|
|
arg(unquoted_ARG, '\0', "unquoted", 0, 0, 0,
|
|
"When used with --nameprefixes, output values in the field=value\n"
|
|
"pairs are not quoted.\n")
|
|
|
|
arg(usepolicies_ARG, '\0', "usepolicies", 0, 0, 0,
|
|
"Perform an operation according to the policy configured in lvm.conf.\n"
|
|
"or a profile.\n")
|
|
|
|
arg(validate_ARG, '\0', "validate", 0, 0, 0,
|
|
"Validate current configuration used and exit with appropriate\n"
|
|
"return code. The validation is done only for the configuration\n"
|
|
"at the front of the \"config cascade\". To validate the whole\n"
|
|
"merged configuration tree, also use --mergedconfig.\n"
|
|
"The validation is done even if lvm.conf config/checks is disabled.\n")
|
|
|
|
arg(version_ARG, '\0', "version", 0, 0, 0,
|
|
"Display version information.\n")
|
|
|
|
arg(vgmetadatacopies_ARG, '\0', "vgmetadatacopies", vgmetadatacopies_VAL, 0, 0,
|
|
"Number of copies of the VG metadata that are kept.\n"
|
|
"VG metadata is kept in VG metadata areas on PVs in the VG,\n"
|
|
"i.e. reserved space at the start and/or end of the PVs.\n"
|
|
"Keeping a copy of the VG metadata on every PV can reduce performance\n"
|
|
"in VGs containing a large number of PVs.\n"
|
|
"When this number is set to a non-zero value, LVM will automatically\n"
|
|
"choose PVs on which to store metadata, using the metadataignore flags\n"
|
|
"on PVs to achieve the specified number.\n"
|
|
"The number can also be replaced with special string values:\n"
|
|
"\\fBunmanaged\\fP causes LVM to not automatically manage the PV\n"
|
|
"metadataignore flags.\n"
|
|
"\\fBall\\fP causes LVM to first clear the metadataignore flags on\n"
|
|
"all PVs, and then to become unmanaged.\n")
|
|
|
|
arg(withsummary_ARG, '\0', "withsummary", 0, 0, 0,
|
|
"Display a one line comment for each configuration node.\n")
|
|
|
|
arg(withcomments_ARG, '\0', "withcomments", 0, 0, 0,
|
|
"Display a full comment for each configuration node. For deprecated\n"
|
|
"settings, also display comments about deprecation.\n")
|
|
|
|
arg(withspaces_ARG, '\0', "withspaces", 0, 0, 0,
|
|
"Where appropriate, add more spaces in output for better readability.\n")
|
|
|
|
arg(withversions_ARG, '\0', "withversions", 0, 0, 0,
|
|
"Also display a comment containing the version of introduction for\n"
|
|
"each configuration node. If the setting is deprecated, also display\n"
|
|
"the version since which it is deprecated.\n")
|
|
|
|
arg(writebehind_ARG, '\0', "writebehind", number_VAL, 0, 0,
|
|
"The maximum number of outstanding writes that are allowed to\n"
|
|
"devices in a RAID1 LV that is marked write-mostly.\n"
|
|
"Once this value is exceeded, writes become synchronous (i.e. all writes\n"
|
|
"to the constituent devices must complete before the array signals the\n"
|
|
"write has completed). Setting the value to zero clears the preference\n"
|
|
"and allows the system to choose the value arbitrarily.\n")
|
|
|
|
arg(writemostly_ARG, '\0', "writemostly", writemostly_VAL, ARG_GROUPABLE, 0,
|
|
"Mark a device in a RAID1 LV as write-mostly. All reads\n"
|
|
"to these drives will be avoided unless absolutely necessary. This keeps\n"
|
|
"the number of I/Os to the drive to a minimum. The default behavior is to\n"
|
|
"set the write-mostly attribute for the specified PV.\n"
|
|
"It is also possible to remove the write-mostly flag by adding the\n"
|
|
"suffix \\fB:n\\fP at the end of the PV name, or to toggle the value with\n"
|
|
"the suffix \\fB:t\\fP. Repeat this option to change the attribute on\n"
|
|
"multiple PVs.\n")
|
|
|
|
/*
|
|
* Synonyms of other options.
|
|
*
|
|
* Only the standard option names are used in command definitions.
|
|
*
|
|
* If used on the command line, lvm automatically translates them
|
|
* to the standard option name.
|
|
*
|
|
* The generated help and man output does not include
|
|
* these variants. The description of the standard option names
|
|
* can mention a synonym, or in some cases the man page generation
|
|
* recognizes some of these and prints the option name to include
|
|
* the variant, e.g. man page generation prints --[raid]writebehind.
|
|
*/
|
|
arg(corelog_ARG, '\0', "corelog", 0, 0, 0, NULL)
|
|
arg(resizable_ARG, '\0', "resizable", bool_VAL, 0, 0, NULL)
|
|
arg(allocation_ARG, '\0', "allocation", bool_VAL, 0, 0, NULL)
|
|
arg(available_ARG, '\0', "available", activation_VAL, 0, 0, NULL)
|
|
arg(raidrebuild_ARG, '\0', "raidrebuild", pv_VAL, ARG_GROUPABLE, 0, NULL)
|
|
arg(raidsyncaction_ARG, '\0', "raidsyncaction", syncaction_VAL, 0, 0, NULL)
|
|
arg(raidwritemostly_ARG, '\0', "raidwritemostly", writemostly_VAL, ARG_GROUPABLE, 0, NULL)
|
|
arg(raidminrecoveryrate_ARG, '\0', "raidminrecoveryrate", sizekb_VAL, 0, 0, NULL)
|
|
arg(raidmaxrecoveryrate_ARG, '\0', "raidmaxrecoveryrate", sizekb_VAL, 0, 0, NULL)
|
|
arg(raidwritebehind_ARG, '\0', "raidwritebehind", number_VAL, 0, 0, NULL)
|
|
arg(virtualoriginsize_ARG, '\0', "virtualoriginsize", sizemb_VAL, 0, 0, NULL)
|
|
arg(split_ARG, '\0', "split", 0, 0, 0, NULL)
|
|
arg(metadatacopies_ARG, '\0', "metadatacopies", metadatacopies_VAL, 0, 0, NULL)
|
|
|
|
|
|
/*
|
|
* ... and now the short args.
|
|
*/
|
|
arg(activate_ARG, 'a', "activate", activation_VAL, 0, 0,
|
|
"#lvchange\n"
|
|
"#vgchange\n"
|
|
"Change the active state of LVs.\n"
|
|
"An active LV can be used through a block device,\n"
|
|
"allowing data on the LV to be accessed.\n"
|
|
"\\fBy\\fP makes LVs active, or available.\n"
|
|
"\\fBn\\fP makes LVs inactive, or unavailable.\n"
|
|
"The block device for the LV is added or removed from the system\n"
|
|
"using device-mapper in the kernel.\n"
|
|
"A symbolic link /dev/VGName/LVName pointing to the device node is also added/removed.\n"
|
|
"All software and scripts should access the device through the symbolic\n"
|
|
"link and present this as the name of the device.\n"
|
|
"The location and name of the underlying device node may depend on\n"
|
|
"the distribution, configuration (e.g. udev), or release version.\n"
|
|
"\\fBay\\fP specifies autoactivation, in which case an LV is activated\n"
|
|
"only if it matches an item in lvm.conf activation/auto_activation_volume_list.\n"
|
|
"If the list is not set, all LVs are considered to match, and if\n"
|
|
"if the list is set but empty, no LVs match.\n"
|
|
"Autoactivation should be used during system boot to make it possible\n"
|
|
"to select which LVs should be automatically activated by the system.\n"
|
|
"See lvmlockd(8) for more information about activation options for shared VGs.\n"
|
|
"See clvmd(8) for more information about activation options for clustered VGs.\n"
|
|
"#lvcreate\n"
|
|
"Controls the active state of the new LV.\n"
|
|
"\\fBy\\fP makes the LV active, or available.\n"
|
|
"New LVs are made active by default.\n"
|
|
"\\fBn\\fP makes the LV inactive, or unavailable, only when possible.\n"
|
|
"In some cases, creating an LV requires it to be active.\n"
|
|
"For example, COW snapshots of an active origin LV can only\n"
|
|
"be created in the active state (this does not apply to thin snapshots.)\n"
|
|
"The --zero option normally requires the LV to be active.\n"
|
|
"If autoactivation \\fBay\\fP is used, the LV is only activated\n"
|
|
"if it matches an item in lvm.conf activation/auto_activation_volume_list.\n"
|
|
"\\fBay\\fP implies --zero n and --wipesignatures n.\n"
|
|
"See lvmlockd(8) for more information about activation options for shared VGs.\n"
|
|
"See clvmd(8) for more information about activation options for clustered VGs.\n")
|
|
|
|
arg(all_ARG, 'a', "all", 0, 0, 0,
|
|
"#vgreduce\n"
|
|
"Removes all empty PVs if none are named on the command line.\n"
|
|
"#lvscan\n"
|
|
"#lvdisplay\n"
|
|
"#lvs\n"
|
|
"Show information about internal LVs.\n"
|
|
"These are components of normal LVs, such as mirrors,\n"
|
|
"which are not independently accessible, e.g. not mountable.\n"
|
|
"#vgs\n"
|
|
"List all VGs. Equivalent to not specifying any VGs.\n"
|
|
"#pvs\n"
|
|
"#pvdisplay\n"
|
|
"Show information about devices that have not been initialized\n"
|
|
"by LVM, i.e. they are not PVs.\n")
|
|
|
|
arg(autobackup_ARG, 'A', "autobackup", bool_VAL, 0, 0,
|
|
"Specifies if metadata should be backed up automatically after a change.\n"
|
|
"Enabling this is strongly advised! See vgcfgbackup(8) for more information.\n")
|
|
|
|
arg(activevolumegroups_ARG, 'A', "activevolumegroups", 0, 0, 0,
|
|
"Only select active VGs. The VG is considered active\n"
|
|
"if at least one of its LVs is active.\n")
|
|
|
|
/* FIXME: remove background option from pvscan, it's not used */
|
|
|
|
arg(background_ARG, 'b', "background", 0, 0, 0,
|
|
"If the operation requires polling, this option causes the command to\n"
|
|
"return before the operation is complete, and polling is done in the\n"
|
|
"background.\n")
|
|
|
|
/* Not used */
|
|
arg(backgroundfork_ARG, 'b', "background", 0, 0, 0, NULL)
|
|
|
|
arg(basevgname_ARG, 'n', "basevgname", string_VAL, 0, 0,
|
|
"By default the snapshot VG will be renamed to the original name plus a\n"
|
|
"numeric suffix to avoid duplicate naming (e.g. 'test_vg' would be renamed\n"
|
|
"to 'test_vg1'). This option will override the base VG name that is\n"
|
|
"used for all VG renames. If a VG already exists with the specified name\n"
|
|
"a numeric suffix will be added (like the previous example) to make it unique.\n")
|
|
|
|
arg(blockdevice_ARG, 'b', "blockdevice", 0, 0, 0,
|
|
"No longer used.\n")
|
|
|
|
arg(chunksize_ARG, 'c', "chunksize", sizekb_VAL, 0, 0,
|
|
"The size of chunks in a snapshot, cache pool or thin pool.\n"
|
|
"For snapshots, the value must be a power of 2 between 4KiB and 512KiB\n"
|
|
"and the default value is 4.\n"
|
|
"For a cache pool the value must be between 32KiB and 1GiB\n"
|
|
"and the default value is 64.\n"
|
|
"For a thin pool the value must be between 64KiB and 1GiB\n"
|
|
"and the default value starts with 64 and scales up to fit the\n"
|
|
"pool metadata size within 128MiB, if the pool metadata size is not specified.\n"
|
|
"The value must be a multiple of 64KiB.\n")
|
|
|
|
arg(clustered_ARG, 'c', "clustered", bool_VAL, 0, 0,
|
|
"#vgcreate\n"
|
|
"Create a clustered VG using clvmd if LVM is compiled with cluster support.\n"
|
|
"This allows multiple hosts to share a VG on shared devices.\n"
|
|
"clvmd and a lock manager must be configured and running.\n"
|
|
"(A clustered VG using clvmd is different from a shared VG using lvmlockd.)\n"
|
|
"See clvmd(8) for more information about clustered VGs.\n"
|
|
"#vgchange\n"
|
|
"Change the clustered property of a VG using clvmd.\n"
|
|
"See clvmd(8) for more information about clustered VGs.\n"
|
|
"#vgsplit\n"
|
|
"Specifies the clustered property of the new VG.\n")
|
|
|
|
arg(colon_ARG, 'c', "colon", 0, 0, 0,
|
|
"Generate colon separated output for easier parsing in scripts or programs.\n"
|
|
"Also see vgs(8) which provides considerably more control over the output.\n")
|
|
|
|
arg(columns_ARG, 'C', "columns", 0, 0, 0,
|
|
"Display output in columns, the equivalent of vgs(8).\n"
|
|
"Options listed are the same as options given in vgs(8).\n")
|
|
|
|
arg(contiguous_ARG, 'C', "contiguous", bool_VAL, 0, 0,
|
|
"Sets or resets the contiguous allocation policy for LVs.\n"
|
|
"Default is no contiguous allocation based on a next free principle.\n"
|
|
"It is only possible to change a non-contiguous allocation policy\n"
|
|
"to contiguous if all of the allocated physical extents in the LV\n"
|
|
"are already contiguous.\n")
|
|
|
|
arg(debug_ARG, 'd', "debug", 0, ARG_COUNTABLE, 0,
|
|
"Set debug level. Repeat from 1 to 6 times to increase the detail of\n"
|
|
"messages sent to the log file and/or syslog (if configured).\n")
|
|
|
|
arg(exported_ARG, 'e', "exported", 0, 0, 0,
|
|
"Only show PVs belonging to exported VGs.\n")
|
|
|
|
/* Not used. */
|
|
arg(physicalextent_ARG, 'E', "physicalextent", 0, 0, 0, NULL)
|
|
|
|
arg(file_ARG, 'f', "file", string_VAL, 0, 0,
|
|
"#lvmconfig\n"
|
|
"#dumpconfig\n"
|
|
"#config\n"
|
|
"Write output to the named file.\n"
|
|
"#vgcfgbackup\n"
|
|
"Write the backup to the named file.\n"
|
|
"When backing up more than one VG, the file name is\n"
|
|
"treated as a template, and %s is replaced by the VG name.\n"
|
|
"#vgcfgrestore\n"
|
|
"Read metadata backup from the named file.\n"
|
|
"Usually this file was created by vgcfgbackup.\n")
|
|
|
|
arg(force_ARG, 'f', "force", 0, ARG_COUNTABLE, 0,
|
|
"Override various checks, confirmations and protections.\n"
|
|
"Use with extreme caution.\n")
|
|
|
|
/* Not used. */
|
|
arg(full_ARG, 'f', "full", 0, 0, 0, NULL)
|
|
|
|
arg(help_ARG, 'h', "help", 0, 0, 0,
|
|
"Display help text.\n")
|
|
|
|
arg(cache_ARG, 'H', "cache", 0, 0, 0,
|
|
"Specifies the command is handling a cache LV or cache pool.\n"
|
|
"See --type cache and --type cache-pool.\n"
|
|
"See lvmcache(7) for more information about LVM caching.\n")
|
|
|
|
arg(history_ARG, 'H', "history", 0, 0, 0,
|
|
"Include historical LVs in the output.\n"
|
|
"(This has no effect unless LVs were removed while\n"
|
|
"lvm.conf metadata/record_lvs_history was enabled.\n")
|
|
|
|
/* Not used */
|
|
arg(help2_ARG, '?', "", 0, 0, 0, NULL)
|
|
|
|
arg(import_ARG, 'i', "import", 0, 0, 0,
|
|
"Import exported VGs. Otherwise VGs that have been exported\n"
|
|
"will not be changed (nor will their associated PVs).\n")
|
|
|
|
arg(interval_ARG, 'i', "interval", number_VAL, 0, 0,
|
|
"Report progress at regular intervals.\n")
|
|
|
|
/* Not used */
|
|
arg(iop_version_ARG, 'i', "iop_version", 0, 0, 0, NULL)
|
|
|
|
arg(stripes_ARG, 'i', "stripes", number_VAL, 0, 0,
|
|
"Specifies the number of stripes in a striped LV. This is the number of\n"
|
|
"PVs (devices) that a striped LV is spread across. Data that\n"
|
|
"appears sequential in the LV is spread across multiple devices in units of\n"
|
|
"the stripe size (see --stripesize). This does not apply to\n"
|
|
"existing allocated space, only newly allocated space can be striped.\n"
|
|
"When creating a RAID 4/5/6 LV, this number does not include the extra\n"
|
|
"devices that are required for parity. The largest number depends on\n"
|
|
"the RAID type (raid0: 64, raid10: 32, raid4/5: 63, raid6: 62.)\n"
|
|
"When unspecified, the default depends on the RAID type\n"
|
|
"(raid0: 2, raid10: 4, raid4/5: 3, raid6: 5.)\n"
|
|
"When unspecified, to stripe across all PVs of the VG,\n"
|
|
"set lvm.conf allocation/raid_stripe_all_devices=1.\n")
|
|
|
|
arg(stripesize_ARG, 'I', "stripesize", sizekb_VAL, 0, 0,
|
|
"The amount of data that is written to one device before\n"
|
|
"moving to the next in a striped LV.\n")
|
|
|
|
arg(logicalvolume_ARG, 'l', "logicalvolume", uint32_VAL, 0, 0,
|
|
"Sets the maximum number of LVs allowed in a VG.\n")
|
|
|
|
arg(maxlogicalvolumes_ARG, 'l', "maxlogicalvolumes", uint32_VAL, 0, 0,
|
|
"Sets the maximum number of LVs allowed in a VG.\n")
|
|
|
|
arg(extents_ARG, 'l', "extents", numsignedper_VAL, 0, 0,
|
|
"#lvcreate\n"
|
|
"Specifies the size of the new LV in logical extents.\n"
|
|
"The --size and --extents options are alternate methods of specifying size.\n"
|
|
"The total number of physical extents used will be\n"
|
|
"greater when redundant data is needed for RAID levels.\n"
|
|
"An alternate syntax allows the size to be determined indirectly\n"
|
|
"as a percentage of the size of a related VG, LV, or set of PVs. The\n"
|
|
"suffix \\fB%VG\\fP denotes the total size of the VG, the suffix \\fB%FREE\\fP\n"
|
|
"the remaining free space in the VG, and the suffix \\fB%PVS\\fP the free\n"
|
|
"space in the specified PVs. For a snapshot, the size\n"
|
|
"can be expressed as a percentage of the total size of the origin LV\n"
|
|
"with the suffix \\fB%ORIGIN\\fP (\\fB100%ORIGIN\\fP provides space for\n"
|
|
"the whole origin).\n"
|
|
"When expressed as a percentage, the size defines an upper limit for the\n"
|
|
"number of logical extents in the new LV. The precise number of logical\n"
|
|
"extents in the new LV is not determined until the command has completed.\n"
|
|
"#lvreduce\n"
|
|
"#lvextend\n"
|
|
"#lvresize\n"
|
|
"Specifies the new size of the LV in logical extents.\n"
|
|
"The --size and --extents options are alternate methods of specifying size.\n"
|
|
"The total number of physical extents used will be\n"
|
|
"greater when redundant data is needed for RAID levels.\n"
|
|
"An alternate syntax allows the size to be determined indirectly\n"
|
|
"as a percentage of the size of a related VG, LV, or set of PVs. The\n"
|
|
"suffix \\fB%VG\\fP denotes the total size of the VG, the suffix \\fB%FREE\\fP\n"
|
|
"the remaining free space in the VG, and the suffix \\fB%PVS\\fP the free\n"
|
|
"space in the specified PVs. For a snapshot, the size\n"
|
|
"can be expressed as a percentage of the total size of the origin LV\n"
|
|
"with the suffix \\fB%ORIGIN\\fP (\\fB100%ORIGIN\\fP provides space for\n"
|
|
"the whole origin).\n"
|
|
"When expressed as a percentage, the size defines an upper limit for the\n"
|
|
"number of logical extents in the new LV. The precise number of logical\n"
|
|
"extents in the new LV is not determined until the command has completed.\n"
|
|
"The plus prefix \\fB+\\fP can be used, in which case\n"
|
|
"the value is added to the current size,\n"
|
|
"or the minus prefix \\fB-\\fP can be used, in which case\n"
|
|
"the value is subtracted from the current size.\n")
|
|
|
|
arg(list_ARG, 'l', "list", 0, 0, 0,
|
|
"#lvmconfig\n"
|
|
"#dumpconfig\n"
|
|
"#config\n"
|
|
"List config settings with summarizing comment. This is the same as using\n"
|
|
"options --typeconfig list --withsummary.\n"
|
|
"#vgcfgrestore\n"
|
|
"List metadata backup and archive files pertaining to the VG.\n"
|
|
"May be used with --file. Does not restore the VG.\n"
|
|
"#vgmerge\n"
|
|
"Display merged destination VG like vgdisplay -v.\n")
|
|
|
|
arg(lvmpartition_ARG, 'l', "lvmpartition", 0, 0, 0,
|
|
"Only report PVs.\n")
|
|
|
|
arg(size_ARG, 'L', "size", sizemb_VAL, 0, 0,
|
|
"#lvcreate\n"
|
|
"Specifies the size of the new LV.\n"
|
|
"The --size and --extents options are alternate methods of specifying size.\n"
|
|
"The total number of physical extents used will be\n"
|
|
"greater when redundant data is needed for RAID levels.\n"
|
|
"A suffix can be chosen from: \\fBbBsSkKmMgGtTpPeE\\fP.\n"
|
|
"All units are base two values, regardless of letter capitalization:\n"
|
|
"b|B is bytes, s|S is sectors of 512 bytes,\n"
|
|
"k|K is kilobytes, m|M is megabytes,\n"
|
|
"g|G is gigabytes, t|T is terabytes,\n"
|
|
"p|P is petabytes, e|E is exabytes.\n"
|
|
"#lvreduce\n"
|
|
"#lvextend\n"
|
|
"#lvresize\n"
|
|
"Specifies the new size of the LV.\n"
|
|
"The --size and --extents options are alternate methods of specifying size.\n"
|
|
"The total number of physical extents used will be\n"
|
|
"greater when redundant data is needed for RAID levels.\n"
|
|
"A suffix can be chosen from: \\fBbBsSkKmMgGtTpPeE\\fP.\n"
|
|
"All units are base two values, regardless of letter capitalization:\n"
|
|
"b|B is bytes, s|S is sectors of 512 bytes,\n"
|
|
"k|K is kilobytes, m|M is megabytes,\n"
|
|
"g|G is gigabytes, t|T is terabytes,\n"
|
|
"p|P is petabytes, e|E is exabytes.\n"
|
|
"The plus prefix \\fB+\\fP can be used, in which case\n"
|
|
"the value is added to the current size,\n"
|
|
"or the minus prefix \\fB-\\fP can be used, in which case\n"
|
|
"the value is subtracted from the current size.\n")
|
|
|
|
arg(persistent_ARG, 'M', "persistent", bool_VAL, 0, 0,
|
|
"When yes, makes the specified minor number persistent.\n")
|
|
|
|
arg(major_ARG, 'j', "major", number_VAL, ARG_GROUPABLE, 0,
|
|
"#lvcreate\n"
|
|
"#lvchange\n"
|
|
"Sets the major number of an LV block device.\n"
|
|
"#pvscan\n"
|
|
"The major number of a device.\n")
|
|
|
|
arg(setactivationskip_ARG, 'k', "setactivationskip", bool_VAL, 0, 0,
|
|
"Persistently sets (yes) or clears (no) the \"activation skip\" flag on an LV.\n"
|
|
"An LV with this flag set is not activated unless the\n"
|
|
"--ignoreactivationskip option is used by the activation command.\n"
|
|
"This flag is set by default on new thin snapshot LVs.\n"
|
|
"The flag is not applied to deactivation.\n"
|
|
"The current value of the flag is indicated in the lvs lv_attr bits.\n")
|
|
|
|
arg(ignoreactivationskip_ARG, 'K', "ignoreactivationskip", 0, 0, 0,
|
|
"Ignore the \"activation skip\" LV flag during activation\n"
|
|
"to allow LVs with the flag set to be activated.\n")
|
|
|
|
arg(maps_ARG, 'm', "maps", 0, 0, 0,
|
|
"#lvdisplay\n"
|
|
"Display the mapping of logical extents to PVs and physical extents.\n"
|
|
"To map physical extents to logical extents use:\n"
|
|
"pvs --segments -o+lv_name,seg_start_pe,segtype\n"
|
|
"#pvdisplay\n"
|
|
"Display the mapping of physical extents to LVs and logical extents.\n")
|
|
|
|
/* FIXME: should the unused mirrors option be removed from lvextend? */
|
|
|
|
arg(mirrors_ARG, 'm', "mirrors", numsigned_VAL, 0, 0,
|
|
"#lvcreate\n"
|
|
"Specifies the number of mirror images in addition to the original LV\n"
|
|
"image, e.g. --mirrors 1 means there are two images of the data, the\n"
|
|
"original and one mirror image.\n"
|
|
"Optional positional PV args on the command line can specify the devices\n"
|
|
"the images should be placed on.\n"
|
|
"There are two mirroring implementations: \"raid1\" and \"mirror\".\n"
|
|
"These are the names of the corresponding LV types, or \"segment types\".\n"
|
|
"Use the --type option to specify which to use (raid1 is default,\n"
|
|
"and mirror is legacy)\n"
|
|
"Use lvm.conf global/mirror_segtype_default and\n"
|
|
"global/raid10_segtype_default to configure the default types.\n"
|
|
"See the --nosync option for avoiding initial image synchronization.\n"
|
|
"#lvconvert\n"
|
|
"Specifies the number of mirror images in addition to the original LV\n"
|
|
"image, e.g. --mirrors 1 means there are two images of the data, the\n"
|
|
"original and one mirror image.\n"
|
|
"Optional positional PV args on the command line can specify the devices\n"
|
|
"the images should be placed on.\n"
|
|
"There are two mirroring implementations: \"raid1\" and \"mirror\".\n"
|
|
"These are the names of the corresponding LV types, or \"segment types\".\n"
|
|
"Use the --type option to specify which to use (raid1 is default,\n"
|
|
"and mirror is legacy)\n"
|
|
"Use lvm.conf global/mirror_segtype_default and\n"
|
|
"global/raid10_segtype_default to configure the default types.\n"
|
|
"The plus prefix \\fB+\\fP can be used, in which case\n"
|
|
"the number is added to the current number of images,\n"
|
|
"or the minus prefix \\fB-\\fP can be used, in which case\n"
|
|
"the number is subtracted from the current number of images.\n"
|
|
"#lvextend\n"
|
|
"Not used.\n")
|
|
|
|
arg(metadatatype_ARG, 'M', "metadatatype", metadatatype_VAL, 0, 0,
|
|
"Specifies the type of on-disk metadata to use.\n"
|
|
"\\fBlvm2\\fP (or just \\fB2\\fP) is the current, standard format.\n"
|
|
"\\fBlvm1\\fP (or just \\fB1\\fP) is a historical format that\n"
|
|
"can be used for accessing old data.\n")
|
|
|
|
arg(name_ARG, 'n', "name", string_VAL, 0, 0,
|
|
"#lvcreate\n"
|
|
"#lvconvert\n"
|
|
"Specifies the name of a new LV.\n"
|
|
"When unspecified, a default name of \"lvol#\" is\n"
|
|
"generated, where # is a number generated by LVM.\n"
|
|
"#pvmove\n"
|
|
"Move only the extents belonging to the named LV.\n"
|
|
"#vgsplit\n"
|
|
"Move only PVs used by the named LV.\n")
|
|
|
|
arg(nofsck_ARG, 'n', "nofsck", 0, 0, 0,
|
|
"Do not perform fsck before resizing filesystem when filesystem\n"
|
|
"requires it. You may need to use --force to proceed with\n"
|
|
"this option.\n")
|
|
|
|
arg(novolumegroup_ARG, 'n', "novolumegroup", 0, 0, 0,
|
|
"Only show PVs not belonging to any VG.\n")
|
|
|
|
/* Not used */
|
|
arg(oldpath_ARG, 'n', "oldpath", 0, 0, 0, NULL)
|
|
|
|
/*
|
|
* FIXME: a free-form discussion section and document the
|
|
* VG/LV/PV attr bits which were previously listed
|
|
* in the description for -o.
|
|
*/
|
|
|
|
arg(options_ARG, 'o', "options", string_VAL, ARG_GROUPABLE, 0,
|
|
"Comma-separated, ordered list of fields to display in columns.\n"
|
|
"String arg syntax is: [+|-|#]Field1[,Field2 ...]\n"
|
|
"The prefix \\fB+\\fP will append the specified fields to the default fields,\n"
|
|
"\\fB-\\fP will remove the specified fields from the default fields, and\n"
|
|
"\\fB#\\fP will compact specified fields (removing them when empty for all rows.)\n"
|
|
"Use \\fB-o help\\fP to view the list of all available fields.\n"
|
|
"The -o option can be repeated, providing several lists.\n"
|
|
"These lists are evaluated from left to right.\n"
|
|
"Use field name \\fBlv_all\\fP to view all LV fields,\n"
|
|
"\\fBvg_all\\fP all VG fields,\n"
|
|
"\\fBpv_all\\fP all PV fields,\n"
|
|
"\\fBpvseg_all\\fP all PV segment fields,\n"
|
|
"\\fBseg_all\\fP all LV segment fields, and\n"
|
|
"\\fBpvseg_all\\fP all PV segment columns.\n"
|
|
"See the lvm.conf report section for more config options.\n"
|
|
"See lvmreport(7) for more information about reporting.\n")
|
|
|
|
arg(sort_ARG, 'O', "sort", string_VAL, ARG_GROUPABLE, 0,
|
|
"Comma-separated ordered list of columns to sort by. Replaces the default\n"
|
|
"selection. Precede any column with \\fB-\\fP for a reverse sort on that column.\n")
|
|
|
|
arg(maxphysicalvolumes_ARG, 'p', "maxphysicalvolumes", uint32_VAL, 0, 0,
|
|
"Sets the maximum number of PVs that can belong to the VG.\n"
|
|
"The value 0 removes any limitation.\n"
|
|
"For large numbers of PVs, also see options --pvmetadatacopies,\n"
|
|
"and --vgmetadatacopies for improving performance.\n")
|
|
|
|
arg(permission_ARG, 'p', "permission", permission_VAL, 0, 0,
|
|
"Set access permission to read only \\fBr\\fP or read and write \\fBrw\\fP.\n")
|
|
|
|
/* FIXME: I left out some of the previous description that didn't sound correct. */
|
|
|
|
arg(partial_ARG, 'P', "partial", 0, 0, 0,
|
|
"When set, the tools will do their best to provide access to VGs\n"
|
|
"that are only partially available (one or more PVs belonging\n"
|
|
"to the VG are missing from the system). Metadata may not be\n"
|
|
"changed with this option.\n")
|
|
|
|
/* Not used */
|
|
arg(physicalvolume_ARG, 'P', "physicalvolume", 0, 0, 0, NULL)
|
|
|
|
arg(quiet_ARG, 'q', "quiet", 0, ARG_COUNTABLE, 0,
|
|
"Suppress output and log messages. Overrides --debug and --verbose.\n"
|
|
"Repeat once to also suppress any prompts with answer no.\n")
|
|
|
|
arg(readahead_ARG, 'r', "readahead", readahead_VAL, 0, 0,
|
|
"Sets read ahead sector count of an LV.\n"
|
|
"\\fBauto\\fP is the default which allows the kernel to choose\n"
|
|
"a suitable value automatically.\n"
|
|
"\\fBnone\\fP is equivalent to zero.\n")
|
|
|
|
arg(resizefs_ARG, 'r', "resizefs", 0, 0, 0,
|
|
"Resize underlying filesystem together with the LV using fsadm(8).\n")
|
|
|
|
/* Not used */
|
|
arg(reset_ARG, 'R', "reset", 0, 0, 0, NULL)
|
|
|
|
arg(regionsize_ARG, 'R', "regionsize", regionsize_VAL, 0, 0,
|
|
"Size of each raid or mirror synchronization region.\n")
|
|
|
|
arg(physicalextentsize_ARG, 's', "physicalextentsize", sizemb_VAL, 0, 0,
|
|
"#vgcreate\n"
|
|
"Sets the physical extent size of PVs in the VG.\n"
|
|
"The value must be either a power of 2 of at least 1 sector\n"
|
|
"(where the sector size is the largest sector size of the PVs\n"
|
|
"currently used in the VG), or at least 128KiB.\n"
|
|
"Once this value has been set, it is difficult to change\n"
|
|
"without recreating the VG, unless no extents need moving.\n"
|
|
"#vgchange\n"
|
|
"Sets the physical extent size of PVs in the VG.\n"
|
|
"The value must be either a power of 2 of at least 1 sector\n"
|
|
"(where the sector size is the largest sector size of the PVs\n"
|
|
"currently used in the VG), or at least 128KiB.\n"
|
|
"Once this value has been set, it is difficult to change\n"
|
|
"without recreating the VG, unless no extents need moving.\n"
|
|
"Before increasing the physical extent size, you might need to use lvresize,\n"
|
|
"pvresize and/or pvmove so that everything fits. For example, every\n"
|
|
"contiguous range of extents used in a LV must start and end on an extent boundary.\n")
|
|
|
|
arg(snapshot_ARG, 's', "snapshot", 0, 0, 0,
|
|
"#lvcreate\n"
|
|
"Create a snapshot. Snapshots provide a \"frozen image\" of an origin LV.\n"
|
|
"The snapshot LV can be used, e.g. for backups, while the origin LV\n"
|
|
"continues to be used.\n"
|
|
"This option can create a COW (copy on write) snapshot,\n"
|
|
"or a thin snapshot (in a thin pool.)\n"
|
|
"Thin snapshots are created when the origin is a thin LV and\n"
|
|
"the size option is NOT specified. Thin snapshots share the same blocks\n"
|
|
"in the thin pool, and do not allocate new space from the VG.\n"
|
|
"Thin snapshots are created with the \"activation skip\" flag,\n"
|
|
"see --setactivationskip.\n"
|
|
"A thin snapshot of a non-thin \"external origin\" LV is created\n"
|
|
"when a thin pool is specified. Unprovisioned blocks in the thin snapshot\n"
|
|
"LV are read from the external origin LV. The external origin LV must\n"
|
|
"be read-only.\n"
|
|
"See lvmthin(7) for more information about LVM thin provisioning.\n"
|
|
"COW snapshots are created when a size is specified. The size is allocated\n"
|
|
"from space in the VG, and is the amount of space that can be used\n"
|
|
"for saving COW blocks as writes occur to the origin or snapshot.\n"
|
|
"The size chosen should depend upon the amount of writes that are expected;\n"
|
|
"often 20% of the origin LV is enough. If COW space runs low, it can\n"
|
|
"be extended with lvextend (shrinking is also allowed with lvreduce.)\n"
|
|
"A small amount of the COW snapshot LV size is used to track COW block\n"
|
|
"locations, so the full size is not available for COW data blocks.\n"
|
|
"Use lvs to check how much space is used, and see --monitor to\n"
|
|
"to automatically extend the size to avoid running out of space.\n"
|
|
"#lvconvert\n"
|
|
"Combine a former COW snapshot LV with a former origin LV to reverse\n"
|
|
"a previous --splitsnapshot command.\n")
|
|
|
|
arg(short_ARG, 's', "short", 0, 0, 0,
|
|
"#pvdisplay\n"
|
|
"Only display the size of the given PVs.\n"
|
|
"#vgdisplay\n"
|
|
"Give a short listing showing the existence of VGs.\n"
|
|
"#pvscan\n"
|
|
"Short listing format.\n")
|
|
|
|
/* Not used */
|
|
arg(stdin_ARG, 's', "stdin", 0, 0, 0, NULL)
|
|
|
|
arg(select_ARG, 'S', "select", string_VAL, ARG_GROUPABLE, 0,
|
|
"Select objects for processing and reporting based on specified criteria.\n"
|
|
"The criteria syntax is described in lvmreport(7) under Selection.\n"
|
|
"For reporting commands, display rows that match the criteria.\n"
|
|
"All rows can be displayed with an additional \"selected\" field (-o selected)\n"
|
|
"showing 1 if the row matches the selection and 0 otherwise.\n"
|
|
"For non-reporting commands which process LVM entities, the selection is\n"
|
|
"used to choose items to process.\n")
|
|
|
|
arg(test_ARG, 't', "test", 0, 0, 0,
|
|
"Run in test mode. Commands will not update metadata.\n"
|
|
"This is implemented by disabling all metadata writing but nevertheless\n"
|
|
"returning success to the calling function. This may lead to unusual\n"
|
|
"error messages in multi-stage operations if a tool relies on reading\n"
|
|
"back metadata it believes has changed but hasn't.\n")
|
|
|
|
arg(thin_ARG, 'T', "thin", 0, 0, 0,
|
|
"Specifies the command is handling a thin LV or thin pool.\n"
|
|
"See --type thin, --type thin-pool, and --virtualsize.\n"
|
|
"See lvmthin(7) for more information about LVM thin provisioning.\n")
|
|
|
|
arg(uuid_ARG, 'u', "uuid", 0, 0, 0,
|
|
"#pvchange\n"
|
|
"Generate new random UUID for specified PVs.\n"
|
|
"#pvscan\n"
|
|
"Show UUIDs in addition to device names.\n"
|
|
"#vgchange\n"
|
|
"Generate new random UUID for specified VGs.\n")
|
|
|
|
arg(uuidstr_ARG, 'u', "uuid", string_VAL, 0, 0,
|
|
"Specify a UUID for the device.\n"
|
|
"Without this option, a random UUID is generated.\n"
|
|
"This option is needed before restoring a backup of LVM metadata\n"
|
|
"onto a replacement device; see vgcfgrestore(8). As such, use of\n"
|
|
"--restorefile is compulsory unless the --norestorefile is used.\n"
|
|
"All PVs must have unique UUIDs, and LVM will prevent certain operations\n"
|
|
"if multiple devices are seen with the same UUID.\n"
|
|
"See vgimportclone(8) for more information.\n")
|
|
|
|
/* Not used */
|
|
arg(uuidlist_ARG, 'U', "uuidlist", 0, 0, 0, NULL)
|
|
|
|
arg(verbose_ARG, 'v', "verbose", 0, ARG_COUNTABLE, 0,
|
|
"Set verbose level. Repeat from 1 to 4 times to increase the detail\n"
|
|
"of messages sent to stdout and stderr.\n")
|
|
|
|
/* Not used */
|
|
arg(volumegroup_ARG, 'V', "volumegroup", 0, 0, 0, NULL)
|
|
|
|
arg(virtualsize_ARG, 'V', "virtualsize", sizemb_VAL, 0, 0,
|
|
"The virtual size of a new thin LV.\n"
|
|
"See lvmthin(7) for more information about LVM thin provisioning.\n"
|
|
"Using virtual size (-V) and actual size (-L) together creates\n"
|
|
"a sparse LV.\n"
|
|
"lvm.conf global/sparse_segtype_default determines the\n"
|
|
"default segment type used to create a sparse LV.\n"
|
|
"Anything written to a sparse LV will be returned when reading from it.\n"
|
|
"Reading from other areas of the LV will return blocks of zeros.\n"
|
|
"When using a snapshot to create a sparse LV, a hidden virtual device\n"
|
|
"is created using the zero target, and the LV has the suffix _vorigin.\n"
|
|
"Snapshots are less efficient than thin provisioning when creating\n"
|
|
"large sparse LVs (GiB).\n")
|
|
|
|
arg(wipesignatures_ARG, 'W', "wipesignatures", bool_VAL, 0, 0,
|
|
"Controls detection and subsequent wiping of signatures on new LVs.\n"
|
|
"There is a prompt for each signature detected to confirm its wiping\n"
|
|
"(unless --yes is used to override confirmations.)\n"
|
|
"When not specified, signatures are wiped whenever zeroing is done\n"
|
|
"(see --zero). This behaviour can be configured with\n"
|
|
"lvm.conf allocation/wipe_signatures_when_zeroing_new_lvs.\n"
|
|
"If blkid wiping is used (lvm.conf allocation/use_blkid_wiping)\n"
|
|
"and LVM is compiled with blkid wiping support, then the blkid(8)\n"
|
|
"library is used to detect the signatures (use blkid -k to list the\n"
|
|
"signatures that are recognized).\n"
|
|
"Otherwise, native LVM code is used to detect signatures\n"
|
|
"(only MD RAID, swap and LUKS signatures are detected in this case.)\n"
|
|
"The LV is not wiped if the read only flag is set.\n")
|
|
|
|
arg(allocatable_ARG, 'x', "allocatable", bool_VAL, 0, 0,
|
|
"Enable or disable allocation of physical extents on this PV.\n")
|
|
|
|
arg(resizeable_ARG, 'x', "resizeable", bool_VAL, 0, 0,
|
|
"Enables or disables the addition or removal of PVs to/from a VG\n"
|
|
"(by vgextend/vgreduce).\n")
|
|
|
|
arg(yes_ARG, 'y', "yes", 0, 0, 0,
|
|
"Do not prompt for confirmation interactively but always assume the\n"
|
|
"answer yes. Use with extreme caution.\n"
|
|
"(For automatic no, see -qq.)\n")
|
|
|
|
arg(zero_ARG, 'Z', "zero", bool_VAL, 0, 0,
|
|
"#lvchange\n"
|
|
"Set zeroing mode for thin pool. Note: already provisioned blocks from pool\n"
|
|
"in non-zero mode are not cleared in unwritten parts when setting --zero y.\n"
|
|
"#lvconvert\n"
|
|
"For snapshots, this controls zeroing of the first 4KiB of data in the\n"
|
|
"snapshot. If the LV is read-only, the snapshot will not be zeroed.\n"
|
|
"For thin pools, this controls zeroing of provisioned blocks.\n"
|
|
"Provisioning of large zeroed chunks negatively impacts performance.\n"
|
|
"#lvcreate\n"
|
|
"Controls zeroing of the first 4KiB of data in the new LV.\n"
|
|
"Default is \\fBy\\fP.\n"
|
|
"Snapshot COW volumes are always zeroed.\n"
|
|
"LV is not zeroed if the read only flag is set.\n"
|
|
"Warning: trying to mount an unzeroed LV can cause the system to hang.\n"
|
|
"#pvcreate\n"
|
|
"#vgcreate\n"
|
|
"#vgextend\n"
|
|
"Controls if the first 4 sectors (2048 bytes) of the device are wiped.\n"
|
|
"The default is to wipe these sectors unless either or both of\n"
|
|
"--restorefile or --uuid are specified.\n")
|
|
|
|
/* this should always be last */
|
|
arg(ARG_COUNT, '-', "", 0, 0, 0, NULL)
|
|
/* *INDENT-ON* */
|