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996360df6b
lvm2/tools/args.h
Dave Wysochanski 996360df6b Allow 'all' and 'unmanaged' values for --vgmetadatacopies. 
Allowing an 'all' and 'unmanaged' value is more intuitive, and
provides a simple way for users to get back to original LVM behavior
of metadata written to all PVs in the volume group.

If the user requests "--vgmetadatacopies unmanaged", this instructs
LVM not to manage the ignore bits to achieve a specific number of
metadata copies in the volume group.  The user is free to use
"pvchange --metadataignore" to control the mdas on a per-PV basis.
If the user requests "--vgmetadatacopies all", this instructs LVM
to do 2 things: 1) clear all ignore bits, and 2) set the "unmanaged"
policy going forward.

Internally, we use the special MAX_UINT32 value to indicate 'all'.
This 'just' works since it's the largest value possible for the
field and so all 'ignore' bits on all mdas in the VG will get
cleared inside _vg_metadata_balance().  However, after we've
called the _vg_metadata_balance function, we check for the special
'all' value, and if set, we write the "unmanaged" value into the
metadata.  As such, the 'all' value is never written to disk.

Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
2010-06-28 20:40:01 +00:00

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/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2010 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Put all long args that don't have a corresponding short option first.
*/
/* *INDENT-OFF* */
arg(version_ARG, '\0', "version", NULL, 0)
arg(quiet_ARG, '\0', "quiet", NULL, 0)
arg(physicalvolumesize_ARG, '\0', "setphysicalvolumesize", size_mb_arg, 0)
arg(ignorelockingfailure_ARG, '\0', "ignorelockingfailure", NULL, 0)
arg(nolocking_ARG, '\0', "nolocking", NULL, 0)
arg(pvmetadatacopies_ARG, '\0', "pvmetadatacopies", int_arg, 0)
arg(vgmetadatacopies_ARG, '\0', "vgmetadatacopies", vgmetadatacopies_arg, 0)
arg(metadatacopies_ARG, '\0', "metadatacopies", int_arg, 0)
arg(metadatasize_ARG, '\0', "metadatasize", size_mb_arg, 0)
arg(metadataignore_ARG, '\0', "metadataignore", yes_no_arg, 0)
arg(restorefile_ARG, '\0', "restorefile", string_arg, 0)
arg(labelsector_ARG, '\0', "labelsector", int_arg, 0)
arg(driverloaded_ARG, '\0', "driverloaded", yes_no_arg, 0)
arg(aligned_ARG, '\0', "aligned", NULL, 0)
arg(unbuffered_ARG, '\0', "unbuffered", NULL, 0)
arg(noheadings_ARG, '\0', "noheadings", NULL, 0)
arg(segments_ARG, '\0', "segments", NULL, 0)
arg(units_ARG, '\0', "units", string_arg, 0)
arg(nosuffix_ARG, '\0', "nosuffix", NULL, 0)
arg(removemissing_ARG, '\0', "removemissing", NULL, 0)
arg(abort_ARG, '\0', "abort", NULL, 0)
arg(addtag_ARG, '\0', "addtag", tag_arg, 0)
arg(deltag_ARG, '\0', "deltag", tag_arg, 0)
arg(refresh_ARG, '\0', "refresh", NULL, 0)
arg(mknodes_ARG, '\0', "mknodes", NULL, 0)
arg(minor_ARG, '\0', "minor", minor_arg, 0)
arg(type_ARG, '\0', "type", segtype_arg, 0)
arg(alloc_ARG, '\0', "alloc", alloc_arg, 0)
arg(separator_ARG, '\0', "separator", string_arg, 0)
arg(mirrorsonly_ARG, '\0', "mirrorsonly", NULL, 0)
arg(nosync_ARG, '\0', "nosync", NULL, 0)
arg(resync_ARG, '\0', "resync", NULL, 0)
arg(corelog_ARG, '\0', "corelog", NULL, 0)
arg(mirrorlog_ARG, '\0', "mirrorlog", string_arg, 0)
arg(splitmirrors_ARG, '\0', "splitmirrors", int_arg, 0)
arg(repair_ARG, '\0', "repair", NULL, 0)
arg(use_policies_ARG, '\0', "use-policies", NULL, 0)
arg(monitor_ARG, '\0', "monitor", yes_no_arg, 0)
arg(config_ARG, '\0', "config", string_arg, 0)
arg(trustcache_ARG, '\0', "trustcache", NULL, 0)
arg(ignoremonitoring_ARG, '\0', "ignoremonitoring", NULL, 0)
arg(nameprefixes_ARG, '\0', "nameprefixes", NULL, 0)
arg(unquoted_ARG, '\0', "unquoted", NULL, 0)
arg(rows_ARG, '\0', "rows", NULL, 0)
arg(dataalignment_ARG, '\0', "dataalignment", size_kb_arg, 0)
arg(dataalignmentoffset_ARG, '\0', "dataalignmentoffset", size_kb_arg, 0)
arg(virtualoriginsize_ARG, '\0', "virtualoriginsize", size_mb_arg, 0)
arg(virtualsize_ARG, '\0', "virtualsize", size_mb_arg, 0)
arg(noudevsync_ARG, '\0', "noudevsync", NULL, 0)
arg(poll_ARG, '\0', "poll", yes_no_arg, 0)
arg(stripes_long_ARG, '\0', "stripes", int_arg, 0)
arg(sysinit_ARG, '\0', "sysinit", NULL, 0)
/* Allow some variations */
arg(resizable_ARG, '\0', "resizable", yes_no_arg, 0)
arg(allocation_ARG, '\0', "allocation", yes_no_arg, 0)
/*
* ... and now the short args.
*/
arg(available_ARG, 'a', "available", yes_no_excl_arg, 0)
arg(all_ARG, 'a', "all", NULL, 0)
arg(autobackup_ARG, 'A', "autobackup", yes_no_arg, 0)
arg(activevolumegroups_ARG, 'A', "activevolumegroups", NULL, 0)
arg(background_ARG, 'b', "background", NULL, 0)
arg(blockdevice_ARG, 'b', "blockdevice", NULL, 0)
arg(chunksize_ARG, 'c', "chunksize", size_kb_arg, 0)
arg(clustered_ARG, 'c', "clustered", yes_no_arg, 0)
arg(colon_ARG, 'c', "colon", NULL, 0)
arg(columns_ARG, 'C', "columns", NULL, 0)
arg(contiguous_ARG, 'C', "contiguous", yes_no_arg, 0)
arg(debug_ARG, 'd', "debug", NULL, ARG_REPEATABLE)
arg(exported_ARG, 'e', "exported", NULL, 0)
arg(physicalextent_ARG, 'E', "physicalextent", NULL, 0)
arg(file_ARG, 'f', "file", string_arg, 0)
arg(force_ARG, 'f', "force", NULL, ARG_REPEATABLE)
arg(full_ARG, 'f', "full", NULL, 0)
arg(help_ARG, 'h', "help", NULL, 0)
arg(help2_ARG, '?', "", NULL, 0)
arg(stripesize_ARG, 'I', "stripesize", size_kb_arg, 0)
arg(stripes_ARG, 'i', "stripes", int_arg, 0)
arg(interval_ARG, 'i', "interval", int_arg, 0)
arg(iop_version_ARG, 'i', "iop_version", NULL, 0)
arg(logicalvolume_ARG, 'l', "logicalvolume", int_arg, 0)
arg(maxlogicalvolumes_ARG, 'l', "maxlogicalvolumes", int_arg, 0)
arg(extents_ARG, 'l', "extents", int_arg_with_sign_and_percent, 0)
arg(lvmpartition_ARG, 'l', "lvmpartition", NULL, 0)
arg(list_ARG, 'l', "list", NULL, 0)
arg(size_ARG, 'L', "size", size_mb_arg, 0)
arg(logicalextent_ARG, 'L', "logicalextent", int_arg_with_sign, 0)
arg(persistent_ARG, 'M', "persistent", yes_no_arg, 0)
arg(merge_ARG, '\0', "merge", NULL, 0)
arg(major_ARG, 'j', "major", major_arg, 0)
arg(mirrors_ARG, 'm', "mirrors", int_arg_with_sign, 0)
arg(metadatatype_ARG, 'M', "metadatatype", metadatatype_arg, 0)
arg(maps_ARG, 'm', "maps", NULL, 0)
arg(name_ARG, 'n', "name", string_arg, 0)
arg(oldpath_ARG, 'n', "oldpath", NULL, 0)
arg(nofsck_ARG, 'n', "nofsck", NULL, 0)
arg(novolumegroup_ARG, 'n', "novolumegroup", NULL, 0)
arg(options_ARG, 'o', "options", string_arg, 0)
arg(sort_ARG, 'O', "sort", string_arg, 0)
arg(permission_ARG, 'p', "permission", permission_arg, 0)
arg(maxphysicalvolumes_ARG, 'p', "maxphysicalvolumes", int_arg, 0)
arg(partial_ARG, 'P', "partial", NULL, 0)
arg(physicalvolume_ARG, 'P', "physicalvolume", NULL, 0)
arg(readahead_ARG, 'r', "readahead", readahead_arg, 0)
arg(resizefs_ARG, 'r', "resizefs", NULL, 0)
arg(reset_ARG, 'R', "reset", NULL, 0)
arg(regionsize_ARG, 'R', "regionsize", size_mb_arg, 0)
arg(physicalextentsize_ARG, 's', "physicalextentsize", size_mb_arg, 0)
arg(stdin_ARG, 's', "stdin", NULL, 0)
arg(snapshot_ARG, 's', "snapshot", NULL, 0)
arg(short_ARG, 's', "short", NULL, 0)
arg(test_ARG, 't', "test", NULL, 0)
arg(uuid_ARG, 'u', "uuid", NULL, 0)
arg(uuidstr_ARG, 'u', "uuid", string_arg, 0)
arg(uuidlist_ARG, 'U', "uuidlist", NULL, 0)
arg(verbose_ARG, 'v', "verbose", NULL, ARG_REPEATABLE)
arg(volumegroup_ARG, 'V', "volumegroup", NULL, 0)
arg(allocatable_ARG, 'x', "allocatable", yes_no_arg, 0)
arg(resizeable_ARG, 'x', "resizeable", yes_no_arg, 0)
arg(yes_ARG, 'y', "yes", NULL, 0)
arg(zero_ARG, 'Z', "zero", yes_no_arg, 0)
/* this should always be last */
arg(ARG_COUNT, '-', "", NULL, 0)
/* *INDENT-ON* */
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