shaba/lvm2
1
0
Fork 0
mirror of git://sourceware.org/git/lvm2.git synced 2025-03-11 20:58:50 +03:00
Code Releases Activity
lvm2/lib/report/columns.h
David Teigland d61838df49 device usage based on devices file 
The devices file /etc/lvm/devices/system.devices is a list of
devices that lvm can use.  This is the default system devices
file, which is specified in lvm.conf devices/devicesfile.

The command option --devicesfile <filename> allows lvm to be
used with a different set of devices.  This allows different
applications to use lvm on different sets of devices, e.g.
system devices do not need to be exposed to an application
using lvm on its own devices, and application devices do not
need to be exposed to the system.

In most cases (with limited exceptions), lvm will not read or
use a device not listed in the devices file.  When the devices
file is used, the regex filter is not used, and the filter
settings in lvm.conf are ignored.  filter-deviceid is used
when the devices file is enabled, and rejects any device that
does not match an entry in the devices file.

Set use_devicesfile=0 in lvm.conf or set --devicesfile ""
on the command line to disable the use of a devices file.
When disabled, lvm will see and use any device on the system
that passes the regex filter (and other standard filters.)

A device ID, e.g. wwid or serial number from sysfs, is a
unique ID that identifies a device.  The device ID is
generally independent of the device content, and lvm can
get the device ID without reading the device.
The device ID is used in the devices file as the primary
method of identifying device entries, and is also included
in VG metadata for PVs.

Each device_id has a device_id_type which indicates where
the device_id comes from, e.g. "sys_wwid" means the device_id
comes from the sysfs wwid file.  Others are sys_serial,
mpath_uuid, loop_file, md_uuid, devname.  (devname is the
device path, which is a fallback when no other proper
device_id_type is available.)

filter-deviceid permits lvm to use only devices on the system
that have a device_id matching a devices file entry.  Using
the device_id, lvm can determine the set of devices to use
without reading any devices, so the devices file will constrain
lvm in two ways:
1. it limits the devices that lvm will read.
2. it limits the devices that lvm will use.

In some uncommon cases, e.g. when devices have no unique ID
and device_id has to fall back to using the devname, lvm may
need to read all devices on the system to determine which
ones correspond to the devices file entries.  In this case,
the devices file does not limit the devices that lvm reads,
but it does limit the devices that lvm uses.

pvcreate/vgcreate/vgextend are not constrained by the devices
file, and will look outside it to find the new PV.  They assign
the new PV a device_id and add it to the devices file.  It is
also possible to explicitly add new PVs to the devices file before
using them in pvcreate/etc, in which case these commands would not
need to look outside the devices file for the new device.

vgimportdevices VG looks at all devices on the system to find an
existing VG and add its devices to the devices file.  The command
is not limited by an existing devices file.  The command will also
add device_ids to the VG metadata if the VG does not yet include
device_ids.  vgimportdevices -a imports devices for all accessible
VGs.  Since vgimportdevices does not limit itself to devices in
an existing devices file, the lvm.conf regex filter applies.
Adding --foreign will import devices for foreign VGs, but device_ids
are not added to foreign VGs.  Incomplete VGs are not imported.

The lvmdevices command manages the devices file.  The primary
purpose is to edit the devices file, but it will read PV headers
to find/check PVIDs.  (It does not read, process or modify VG
metadata.)

lvmdevices
. Displays devices file entries.
lvmdevices --check
. Checks devices file entries.
lvmdevices --update
. Updates devices file entries.
lvmdevices --adddev <devname>
. Adds devices_file entry (reads pv header).
lvmdevices --deldev <devname>
. Removes devices file entry.
lvmdevices --addpvid <pvid>
. Reads pv header of all devices to find <pvid>,
  and if found adds devices file entry.
lvmdevices --delpvid <pvid>
. Removes devices file entry.

The vgimportclone command has a new option --importdevices
that does the equivalent of vgimportdevices with the cloned
devices that are being imported.  The devices are "uncloned"
(new vgname and pvids) while at the same time adding the
devices to the devices file.  This allows cloned PVs to be
imported without duplicate PVs ever appearing on the system.

The command option --devices <devnames> allows a specific
list of devices to be exposed to the lvm command, overriding
the devices file.

TODO:
. device_id_type for other special devices (nbd, drbd, others?)
. dmeventd run commands with --devicesfile dmeventd.devices
. allow operations with duplicate pvs if device id and size match only one dev
2021-02-11 17:46:04 -06:00

325 lines
28 KiB
C
Raw Permalink Blame History

/*
* Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2019 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* This file defines the fields (columns) for the reporting commands
* (pvs/vgs/lvs).
*
* The preferred order of the field descriptions in the help text
* determines the order the entries appear in this file.
*
* When adding new entries take care to use the existing style.
*
* Do not interleave fields from different report types - for example,
* if you have a field of type "LVS" add it in between "LVS type fields"
* and "End of LVS type fields" comment. If you interleaved fields of
* different types here in this file, they would end up interleaved in
* the <reporting_command> -o help output too which may be confusing
* for users.
*
* Displayed fields names normally have a type prefix and use underscores.
*
* Field-specific internal functions names normally match the displayed
* field names but without underscores.
*
* Help text ends with a full stop.
*/
/*
* FIELD(report_object_type, structure, sort_type, heading, structure_field, output_width, reporting_function, field_id, description, settable_via_lib)
*/
/* *INDENT-OFF* */
/*
* LVS type fields
*/
FIELD(LVS, lv, STR, "LV UUID", lvid, 38, lvuuid, lv_uuid, "Unique identifier.", 0)
FIELD(LVS, lv, STR, "LV", lvid, 4, lvname, lv_name, "Name. LVs created for internal use are enclosed in brackets.", 0)
FIELD(LVS, lv, STR, "LV", lvid, 4, lvfullname, lv_full_name, "Full name of LV including its VG, namely VG/LV.", 0)
FIELD(LVS, lv, STR, "Path", lvid, 0, lvpath, lv_path, "Full pathname for LV. Blank for internal LVs.", 0)
FIELD(LVS, lv, STR, "DMPath", lvid, 0, lvdmpath, lv_dm_path, "Internal device-mapper pathname for LV (in /dev/mapper directory).", 0)
FIELD(LVS, lv, STR, "Parent", lvid, 0, lvparent, lv_parent, "For LVs that are components of another LV, the parent LV.", 0)
FIELD(LVS, lv, STR_LIST, "Layout", lvid, 10, lvlayout, lv_layout, "LV layout.", 0)
FIELD(LVS, lv, STR_LIST, "Role", lvid, 10, lvrole, lv_role, "LV role.", 0)
FIELD(LVS, lv, BIN, "InitImgSync", lvid, 10, lvinitialimagesync, lv_initial_image_sync, "Set if mirror/RAID images underwent initial resynchronization.", 0)
FIELD(LVS, lv, BIN, "ImgSynced", lvid, 10, lvimagesynced, lv_image_synced, "Set if mirror/RAID image is synchronized.", 0)
FIELD(LVS, lv, BIN, "Merging", lvid, 10, lvmerging, lv_merging, "Set if snapshot LV is being merged to origin.", 0)
FIELD(LVS, lv, BIN, "Converting", lvid, 0, lvconverting, lv_converting, "Set if LV is being converted.", 0)
FIELD(LVS, lv, STR, "AllocPol", lvid, 10, lvallocationpolicy, lv_allocation_policy, "LV allocation policy.", 0)
FIELD(LVS, lv, BIN, "AllocLock", lvid, 10, lvallocationlocked, lv_allocation_locked, "Set if LV is locked against allocation changes.", 0)
FIELD(LVS, lv, BIN, "FixMin", lvid, 10, lvfixedminor, lv_fixed_minor, "Set if LV has fixed minor number assigned.", 0)
FIELD(LVS, lv, BIN, "SkipAct", lvid, 15, lvskipactivation, lv_skip_activation, "Set if LV is skipped on activation.", 0)
FIELD(LVS, lv, STR, "WhenFull", lvid, 15, lvwhenfull, lv_when_full, "For thin pools, behavior when full.", 0)
FIELD(LVS, lv, STR, "Active", lvid, 0, lvactive, lv_active, "Active state of the LV.", 0)
FIELD(LVS, lv, BIN, "ActLocal", lvid, 10, lvactivelocally, lv_active_locally, "Set if the LV is active locally.", 0)
FIELD(LVS, lv, BIN, "ActRemote", lvid, 10, lvactiveremotely, lv_active_remotely, "Set if the LV is active remotely.", 0)
FIELD(LVS, lv, BIN, "ActExcl", lvid, 10, lvactiveexclusively, lv_active_exclusively, "Set if the LV is active exclusively.", 0)
FIELD(LVS, lv, SNUM, "Maj", major, 0, int32, lv_major, "Persistent major number or -1 if not persistent.", 0)
FIELD(LVS, lv, SNUM, "Min", minor, 0, int32, lv_minor, "Persistent minor number or -1 if not persistent.", 0)
FIELD(LVS, lv, SIZ, "Rahead", lvid, 0, lvreadahead, lv_read_ahead, "Read ahead setting in current units.", 0)
FIELD(LVS, lv, SIZ, "LSize", lvid, 0, lv_size, lv_size, "Size of LV in current units.", 0)
FIELD(LVS, lv, SIZ, "MSize", lvid, 0, lvmetadatasize, lv_metadata_size, "For thin and cache pools, the size of the LV that holds the metadata.", 0)
FIELD(LVS, lv, NUM, "#Seg", lvid, 0, lvsegcount, seg_count, "Number of segments in LV.", 0)
FIELD(LVS, lv, STR, "Origin", lvid, 0, origin, origin, "For snapshots and thins, the origin device of this LV.", 0)
FIELD(LVS, lv, STR, "Origin UUID", lvid, 38, originuuid, origin_uuid, "For snapshots and thins, the UUID of origin device of this LV.", 0)
FIELD(LVS, lv, SIZ, "OSize", lvid, 0, originsize, origin_size, "For snapshots, the size of the origin device of this LV.", 0)
FIELD(LVS, lv, STR_LIST, "Ancestors", lvid, 0, lvancestors, lv_ancestors, "LV ancestors ignoring any stored history of the ancestry chain.", 0)
FIELD(LVS, lv, STR_LIST, "FAncestors", lvid, 0, lvfullancestors, lv_full_ancestors, "LV ancestors including stored history of the ancestry chain.", 0)
FIELD(LVS, lv, STR_LIST, "Descendants", lvid, 0, lvdescendants, lv_descendants, "LV descendants ignoring any stored history of the ancestry chain.", 0)
FIELD(LVS, lv, STR_LIST, "FDescendants", lvid, 0, lvfulldescendants, lv_full_descendants, "LV descendants including stored history of the ancestry chain.", 0)
FIELD(LVS, lv, NUM, "Mismatches", lvid, 0, raidmismatchcount, raid_mismatch_count, "For RAID, number of mismatches found or repaired.", 0)
FIELD(LVS, lv, STR, "SyncAction", lvid, 0, raidsyncaction, raid_sync_action, "For RAID, the current synchronization action being performed.", 0)
FIELD(LVS, lv, NUM, "WBehind", lvid, 0, raidwritebehind, raid_write_behind, "For RAID1, the number of outstanding writes allowed to writemostly devices.", 0)
FIELD(LVS, lv, NUM, "MinSync", lvid, 0, raidminrecoveryrate, raid_min_recovery_rate, "For RAID1, the minimum recovery I/O load in kiB/sec/disk.", 0)
FIELD(LVS, lv, NUM, "MaxSync", lvid, 0, raidmaxrecoveryrate, raid_max_recovery_rate, "For RAID1, the maximum recovery I/O load in kiB/sec/disk.", 0)
FIELD(LVS, lv, STR, "IntegMode", lvid, 0, raidintegritymode, raidintegritymode, "The integrity mode", 0)
FIELD(LVS, lv, NUM, "IntegBlkSize", lvid, 0, raidintegrityblocksize, raidintegrityblocksize, "The integrity block size", 0)
FIELD(LVS, lv, NUM, "IntegMismatches", lvid, 0, integritymismatches, integritymismatches, "The number of integrity mismatches.", 0)
FIELD(LVS, lv, STR, "Move", lvid, 0, movepv, move_pv, "For pvmove, Source PV of temporary LV created by pvmove.", 0)
FIELD(LVS, lv, STR, "Move UUID", lvid, 38, movepvuuid, move_pv_uuid, "For pvmove, the UUID of Source PV of temporary LV created by pvmove.", 0)
FIELD(LVS, lv, STR, "Convert", lvid, 0, convertlv, convert_lv, "For lvconvert, Name of temporary LV created by lvconvert.", 0)
FIELD(LVS, lv, STR, "Convert UUID", lvid, 38, convertlvuuid, convert_lv_uuid, "For lvconvert, UUID of temporary LV created by lvconvert.", 0)
FIELD(LVS, lv, STR, "Log", lvid, 0, loglv, mirror_log, "For mirrors, the LV holding the synchronisation log.", 0)
FIELD(LVS, lv, STR, "Log UUID", lvid, 38, loglvuuid, mirror_log_uuid, "For mirrors, the UUID of the LV holding the synchronisation log.", 0)
FIELD(LVS, lv, STR, "Data", lvid, 0, datalv, data_lv, "For cache/thin/vdo pools, the LV holding the associated data.", 0)
FIELD(LVS, lv, STR, "Data UUID", lvid, 38, datalvuuid, data_lv_uuid, "For cache/thin/vdo pools, the UUID of the LV holding the associated data.", 0)
FIELD(LVS, lv, STR, "Meta", lvid, 0, metadatalv, metadata_lv, "For cache/thin pools, the LV holding the associated metadata.", 0)
FIELD(LVS, lv, STR, "Meta UUID", lvid, 38, metadatalvuuid, metadata_lv_uuid, "For cache/thin pools, the UUID of the LV holding the associated metadata.", 0)
FIELD(LVS, lv, STR, "Pool", lvid, 0, poollv, pool_lv, "For cache/thin/vdo volumes, the cache/thin/vdo pool LV for this volume.", 0)
FIELD(LVS, lv, STR, "Pool UUID", lvid, 38, poollvuuid, pool_lv_uuid, "For cache/thin/vdo volumes, the UUID of the cache/thin/vdo pool LV for this volume.", 0)
FIELD(LVS, lv, STR_LIST, "LV Tags", tags, 0, tags, lv_tags, "Tags, if any.", 0)
FIELD(LVS, lv, STR, "LProfile", lvid, 0, lvprofile, lv_profile, "Configuration profile attached to this LV.", 0)
FIELD(LVS, lv, STR, "LLockArgs", lvid, 0, lvlockargs, lv_lockargs, "Lock args of the LV used by lvmlockd.", 0)
FIELD(LVS, lv, TIM, "CTime", lvid, 26, lvtime, lv_time, "Creation time of the LV, if known", 0)
FIELD(LVS, lv, TIM, "RTime", lvid, 26, lvtimeremoved, lv_time_removed, "Removal time of the LV, if known", 0)
FIELD(LVS, lv, STR, "Host", lvid, 10, lvhost, lv_host, "Creation host of the LV, if known.", 0)
FIELD(LVS, lv, STR_LIST, "Modules", lvid, 0, modules, lv_modules, "Kernel device-mapper modules required for this LV.", 0)
FIELD(LVS, lv, BIN, "Historical", lvid, 0, lvhistorical, lv_historical, "Set if the LV is historical.", 0)
/*
* End of LVS type fields
*/
/*
* LVSINFO type fields
*/
FIELD(LVSINFO, lv, SNUM, "KMaj", lvid, 0, lvkmaj, lv_kernel_major, "Currently assigned major number or -1 if LV is not active.", 0)
FIELD(LVSINFO, lv, SNUM, "KMin", lvid, 0, lvkmin, lv_kernel_minor, "Currently assigned minor number or -1 if LV is not active.", 0)
FIELD(LVSINFO, lv, SIZ, "KRahead", lvid, 0, lvkreadahead, lv_kernel_read_ahead, "Currently-in-use read ahead setting in current units.", 0)
FIELD(LVSINFO, lv, STR, "LPerms", lvid, 8, lvpermissions, lv_permissions, "LV permissions.", 0)
FIELD(LVSINFO, lv, BIN, "Suspended", lvid, 10, lvsuspended, lv_suspended, "Set if LV is suspended.", 0)
FIELD(LVSINFO, lv, BIN, "LiveTable", lvid, 20, lvlivetable, lv_live_table, "Set if LV has live table present.", 0)
FIELD(LVSINFO, lv, BIN, "InactiveTable", lvid, 20, lvinactivetable, lv_inactive_table, "Set if LV has inactive table present.", 0)
FIELD(LVSINFO, lv, BIN, "DevOpen", lvid, 10, lvdeviceopen, lv_device_open, "Set if LV device is open.", 0)
/*
* End of LVSINFO type fields
*/
/*
* LVSSTATUS type fields
*/
FIELD(LVSSTATUS, lv, PCT, "Data%", lvid, 6, datapercent, data_percent, "For snapshot, cache and thin pools and volumes, the percentage full if LV is active.", 0)
FIELD(LVSSTATUS, lv, PCT, "Snap%", lvid, 6, snpercent, snap_percent, "For snapshots, the percentage full if LV is active.", 0)
FIELD(LVSSTATUS, lv, PCT, "Meta%", lvid, 6, metadatapercent, metadata_percent, "For cache and thin pools, the percentage of metadata full if LV is active.", 0)
FIELD(LVSSTATUS, lv, PCT, "Cpy%Sync", lvid, 0, copypercent, copy_percent, "For Cache, RAID, mirrors and pvmove, current percentage in-sync.", 0)
FIELD(LVSSTATUS, lv, PCT, "Cpy%Sync", lvid, 0, copypercent, sync_percent, "For Cache, RAID, mirrors and pvmove, current percentage in-sync.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheTotalBlocks", lvid, 0, cache_total_blocks, cache_total_blocks, "Total cache blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheUsedBlocks", lvid, 16, cache_used_blocks, cache_used_blocks, "Used cache blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheDirtyBlocks", lvid, 0, cache_dirty_blocks, cache_dirty_blocks, "Dirty cache blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheReadHits", lvid, 16, cache_read_hits, cache_read_hits, "Cache read hits.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheReadMisses", lvid, 16, cache_read_misses, cache_read_misses, "Cache read misses.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheWriteHits", lvid, 16, cache_write_hits, cache_write_hits, "Cache write hits.", 0)
FIELD(LVSSTATUS, lv, NUM, "CacheWriteMisses", lvid, 0, cache_write_misses, cache_write_misses, "Cache write misses.", 0)
FIELD(LVSSTATUS, lv, STR_LIST, "KCacheSettings", lvid, 18, kernel_cache_settings, kernel_cache_settings, "Cache settings/parameters as set in kernel, including default values (cached segments only).", 0)
FIELD(LVSSTATUS, lv, STR, "KCachePolicy", lvid, 18, kernel_cache_policy, kernel_cache_policy, "Cache policy used in kernel.", 0)
FIELD(LVSSTATUS, lv, NUM, "KMFmt", lvid, 0, kernelmetadataformat, kernel_metadata_format, "Cache metadata format used in kernel.", 0)
FIELD(LVSSTATUS, lv, STR, "Health", lvid, 15, lvhealthstatus, lv_health_status, "LV health status.", 0)
FIELD(LVSSTATUS, lv, STR, "KDiscards", lvid, 0, kdiscards, kernel_discards, "For thin pools, how discards are handled in kernel.", 0)
FIELD(LVSSTATUS, lv, BIN, "CheckNeeded", lvid, 15, lvcheckneeded, lv_check_needed, "For thin pools and cache volumes, whether metadata check is needed.", 0)
FIELD(LVSSTATUS, lv, BIN, "MergeFailed", lvid, 15, lvmergefailed, lv_merge_failed, "Set if snapshot merge failed.", 0)
FIELD(LVSSTATUS, lv, BIN, "SnapInvalid", lvid, 15, lvsnapshotinvalid, lv_snapshot_invalid, "Set if snapshot LV is invalid.", 0)
FIELD(LVSSTATUS, lv, STR, "VDOOperatingMode", lvid, 0, vdo_operating_mode, vdo_operating_mode, "For vdo pools, its current operating mode.", 0)
FIELD(LVSSTATUS, lv, STR, "VDOCompressionState", lvid, 0, vdo_compression_state, vdo_compression_state, "For vdo pools, whether compression is running.", 0)
FIELD(LVSSTATUS, lv, STR, "VDOIndexState", lvid, 0, vdo_index_state, vdo_index_state, "For vdo pools, state of index for deduplication.", 0)
FIELD(LVSSTATUS, lv, NUM, "VDOUsedSize", lvid, 0, vdo_used_size, vdo_used_size, "For vdo pools, currently used space.", 0)
FIELD(LVSSTATUS, lv, NUM, "VDOSaving%", lvid, 0, vdo_saving_percent, vdo_saving_percent, "For vdo pools, percentage of saved space.", 0)
FIELD(LVSSTATUS, lv, NUM, "WCacheTotalBlocks", lvid, 0, writecache_total_blocks, writecache_total_blocks, "Total writecache blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "WCacheFreeBlocks", lvid, 0, writecache_free_blocks, writecache_free_blocks, "Total writecache free blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "WCacheWritebackBlocks", lvid, 0, writecache_writeback_blocks, writecache_writeback_blocks, "Total writecache writeback blocks.", 0)
FIELD(LVSSTATUS, lv, NUM, "WCacheErrors", lvid, 0, writecache_error, writecache_error, "Total writecache errors.", 0)
/*
* End of LVSSTATUS type fields
*/
/*
* LVSINFOSTATUS type fields
*/
FIELD(LVSINFOSTATUS, lv, STR, "Attr", lvid, 0, lvstatus, lv_attr, "Various attributes - see man page.", 0)
/*
* End of LVSINFOSTATUS type fields
*/
/*
* LABEL type fields
*/
FIELD(LABEL, label, STR, "Fmt", type, 0, pvfmt, pv_fmt, "Type of metadata.", 0)
FIELD(LABEL, label, STR, "PV UUID", type, 38, pvuuid, pv_uuid, "Unique identifier.", 0)
FIELD(LABEL, label, SIZ, "DevSize", dev, 0, devsize, dev_size, "Size of underlying device in current units.", 0)
FIELD(LABEL, label, STR, "PV", dev, 10, dev_name, pv_name, "Name.", 0)
FIELD(LABEL, label, STR, "Maj", dev, 0, devmajor, pv_major, "Device major number.", 0)
FIELD(LABEL, label, STR, "Min", dev, 0, devminor, pv_minor, "Device minor number.", 0)
FIELD(LABEL, label, SIZ, "PMdaFree", type, 9, pvmdafree, pv_mda_free, "Free metadata area space on this device in current units.", 0)
FIELD(LABEL, label, SIZ, "PMdaSize", type, 9, pvmdasize, pv_mda_size, "Size of smallest metadata area on this device in current units.", 0)
FIELD(LABEL, label, NUM, "PExtVsn", type, 0, pvextvsn, pv_ext_vsn, "PV header extension version.", 0)
/*
* End of LABEL type fields
*/
/*
* PVS type fields
*/
FIELD(PVS, pv, NUM, "1st PE", pe_start, 7, size64, pe_start, "Offset to the start of data on the underlying device.", 0)
FIELD(PVS, pv, SIZ, "PSize", id, 0, pvsize, pv_size, "Size of PV in current units.", 0)
FIELD(PVS, pv, SIZ, "PFree", id, 0, pvfree, pv_free, "Total amount of unallocated space in current units.", 0)
FIELD(PVS, pv, SIZ, "Used", id, 0, pvused, pv_used, "Total amount of allocated space in current units.", 0)
FIELD(PVS, pv, STR, "Attr", id, 0, pvstatus, pv_attr, "Various attributes - see man page.", 0)
FIELD(PVS, pv, BIN, "Allocatable", id, 0, pvallocatable, pv_allocatable, "Set if this device can be used for allocation.", 0)
FIELD(PVS, pv, BIN, "Exported", id, 10, pvexported, pv_exported, "Set if this device is exported.", 0)
FIELD(PVS, pv, BIN, "Missing", id, 10, pvmissing, pv_missing, "Set if this device is missing in system.", 0)
FIELD(PVS, pv, NUM, "PE", pe_count, 3, uint32, pv_pe_count, "Total number of Physical Extents.", 0)
FIELD(PVS, pv, NUM, "Alloc", pe_alloc_count, 0, uint32, pv_pe_alloc_count, "Total number of allocated Physical Extents.", 0)
FIELD(PVS, pv, STR_LIST, "PV Tags", tags, 0, tags, pv_tags, "Tags, if any.", 0)
FIELD(PVS, pv, NUM, "#PMda", id, 0, pvmdas, pv_mda_count, "Number of metadata areas on this device.", 0)
FIELD(PVS, pv, NUM, "#PMdaUse", id, 0, pvmdasused, pv_mda_used_count, "Number of metadata areas in use on this device.", 0)
FIELD(PVS, pv, SIZ, "BA Start", ba_start, 0, size64, pv_ba_start, "Offset to the start of PV Bootloader Area on the underlying device in current units.", 0)
FIELD(PVS, pv, SIZ, "BA Size", ba_size, 0, size64, pv_ba_size, "Size of PV Bootloader Area in current units.", 0)
FIELD(PVS, pv, BIN, "PInUse", id, 0, pvinuse, pv_in_use, "Set if PV is used.", 0)
FIELD(PVS, pv, BIN, "Duplicate", id, 0, pvduplicate, pv_duplicate, "Set if PV is an unchosen duplicate.", 0)
FIELD(PVS, pv, STR, "DeviceID", id, 0, pvdeviceid, pv_device_id, "Device ID such as the WWID.", 0)
FIELD(PVS, pv, STR, "DeviceIDType", id, 0, pvdeviceidtype, pv_device_id_type, "Type of device ID such as WWID.", 0)
/*
* End of PVS type fields
*/
/*
* VGS type fields
*/
FIELD(VGS, vg, STR, "Fmt", cmd, 0, vgfmt, vg_fmt, "Type of metadata.", 0)
FIELD(VGS, vg, STR, "VG UUID", id, 38, uuid, vg_uuid, "Unique identifier.", 0)
FIELD(VGS, vg, STR, "VG", name, 0, string, vg_name, "Name.", 0)
FIELD(VGS, vg, STR, "Attr", cmd, 5, vgstatus, vg_attr, "Various attributes - see man page.", 0)
FIELD(VGS, vg, STR, "VPerms", cmd, 10, vgpermissions, vg_permissions, "VG permissions.", 0)
FIELD(VGS, vg, BIN, "Extendable", cmd, 0, vgextendable, vg_extendable, "Set if VG is extendable.", 0)
FIELD(VGS, vg, BIN, "Exported", cmd, 10, vgexported, vg_exported, "Set if VG is exported.", 0)
FIELD(VGS, vg, BIN, "Partial", cmd, 10, vgpartial, vg_partial, "Set if VG is partial.", 0)
FIELD(VGS, vg, STR, "AllocPol", cmd, 10, vgallocationpolicy, vg_allocation_policy, "VG allocation policy.", 0)
FIELD(VGS, vg, BIN, "Clustered", cmd, 10, vgclustered, vg_clustered, "Set if VG is clustered.", 0)
FIELD(VGS, vg, BIN, "Shared", cmd, 7, vgshared, vg_shared, "Set if VG is shared.", 0)
FIELD(VGS, vg, SIZ, "VSize", cmd, 0, vgsize, vg_size, "Total size of VG in current units.", 0)
FIELD(VGS, vg, SIZ, "VFree", cmd, 0, vgfree, vg_free, "Total amount of free space in current units.", 0)
FIELD(VGS, vg, STR, "SYS ID", cmd, 0, vgsystemid, vg_sysid, "System ID of the VG indicating which host owns it.", 0)
FIELD(VGS, vg, STR, "System ID", cmd, 0, vgsystemid, vg_systemid, "System ID of the VG indicating which host owns it.", 0)
FIELD(VGS, vg, STR, "LockType", cmd, 0, vglocktype, vg_lock_type, "Lock type of the VG used by lvmlockd.", 0)
FIELD(VGS, vg, STR, "VLockArgs", cmd, 0, vglockargs, vg_lock_args, "Lock args of the VG used by lvmlockd.", 0)
FIELD(VGS, vg, SIZ, "Ext", extent_size, 0, size32, vg_extent_size, "Size of Physical Extents in current units.", 0)
FIELD(VGS, vg, NUM, "#Ext", extent_count, 0, uint32, vg_extent_count, "Total number of Physical Extents.", 0)
FIELD(VGS, vg, NUM, "Free", free_count, 0, uint32, vg_free_count, "Total number of unallocated Physical Extents.", 0)
FIELD(VGS, vg, NUM, "MaxLV", max_lv, 0, uint32, max_lv, "Maximum number of LVs allowed in VG or 0 if unlimited.", 0)
FIELD(VGS, vg, NUM, "MaxPV", max_pv, 0, uint32, max_pv, "Maximum number of PVs allowed in VG or 0 if unlimited.", 0)
FIELD(VGS, vg, NUM, "#PV", pv_count, 0, uint32, pv_count, "Number of PVs in VG.", 0)
FIELD(VGS, vg, NUM, "#PV Missing", cmd, 0, vgmissingpvcount, vg_missing_pv_count, "Number of PVs in VG which are missing.", 0)
FIELD(VGS, vg, NUM, "#LV", cmd, 0, lvcount, lv_count, "Number of LVs.", 0)
FIELD(VGS, vg, NUM, "#SN", cmd, 0, snapcount, snap_count, "Number of snapshots.", 0)
FIELD(VGS, vg, NUM, "Seq", seqno, 0, uint32, vg_seqno, "Revision number of internal metadata. Incremented whenever it changes.", 0)
FIELD(VGS, vg, STR_LIST, "VG Tags", tags, 0, tags, vg_tags, "Tags, if any.", 0)
FIELD(VGS, vg, STR, "VProfile", cmd, 0, vgprofile, vg_profile, "Configuration profile attached to this VG.", 0)
FIELD(VGS, vg, NUM, "#VMda", cmd, 0, vgmdas, vg_mda_count, "Number of metadata areas on this VG.", 0)
FIELD(VGS, vg, NUM, "#VMdaUse", cmd, 0, vgmdasused, vg_mda_used_count, "Number of metadata areas in use on this VG.", 0)
FIELD(VGS, vg, SIZ, "VMdaFree", cmd, 9, vgmdafree, vg_mda_free, "Free metadata area space for this VG in current units.", 0)
FIELD(VGS, vg, SIZ, "VMdaSize", cmd, 9, vgmdasize, vg_mda_size, "Size of smallest metadata area for this VG in current units.", 0)
FIELD(VGS, vg, NUM, "#VMdaCps", cmd, 0, vgmdacopies, vg_mda_copies, "Target number of in use metadata areas in the VG.", 1)
/*
* End of VGS type fields
*/
/*
* SEGS type fields
*/
FIELD(SEGS, seg, STR, "Type", list, 0, segtype, segtype, "Type of LV segment.", 0)
FIELD(SEGS, seg, NUM, "#Str", list, 0, seg_stripes, stripes, "Number of stripes or mirror/raid1 legs.", 0)
FIELD(SEGS, seg, NUM, "#DStr", list, 0, seg_data_stripes, data_stripes, "Number of data stripes or mirror/raid1 legs.", 0)
FIELD(SEGS, seg, SIZ, "RSize", list, 0, seg_reshape_len, reshape_len, "Size of out-of-place reshape space in current units.", 0)
FIELD(SEGS, seg, NUM, "RSize", list, 0, seg_reshape_len_le, reshape_len_le, "Size of out-of-place reshape space in logical extents.", 0)
FIELD(SEGS, seg, NUM, "#Cpy", list, 0, seg_data_copies, data_copies, "Number of data copies.", 0)
FIELD(SEGS, seg, NUM, "DOff", list, 0, seg_data_offset, data_offset, "Data offset on each image device.", 0)
FIELD(SEGS, seg, NUM, "NOff", list, 0, seg_new_data_offset, new_data_offset, "New data offset after any reshape on each image device.", 0)
FIELD(SEGS, seg, NUM, "#Par", list, 0, seg_parity_chunks, parity_chunks, "Number of (rotating) parity chunks.", 0)
FIELD(SEGS, seg, SIZ, "Stripe", stripe_size, 0, size32, stripe_size, "For stripes, amount of data placed on one device before switching to the next.", 0)
FIELD(SEGS, seg, SIZ, "Region", region_size, 0, size32, region_size, "For mirrors/raids, the unit of data per leg when synchronizing devices.", 0)
FIELD(SEGS, seg, SIZ, "Chunk", list, 0, chunksize, chunk_size, "For snapshots, the unit of data used when tracking changes.", 0)
FIELD(SEGS, seg, NUM, "#Thins", list, 0, thincount, thin_count, "For thin pools, the number of thin volumes in this pool.", 0)
FIELD(SEGS, seg, STR, "Discards", list, 0, discards, discards, "For thin pools, how discards are handled.", 0)
FIELD(SEGS, seg, NUM, "CMFmt", list, 0, cachemetadataformat, cache_metadata_format, "For cache, metadata format in use.", 0)
FIELD(SEGS, seg, STR, "CacheMode", list, 0, cachemode, cache_mode, "For cache, how writes are cached.", 0)
FIELD(SEGS, seg, BIN, "Zero", list, 0, thinzero, zero, "For thin pools and volumes, if zeroing is enabled.", 0)
FIELD(SEGS, seg, NUM, "TransId", list, 0, transactionid, transaction_id, "For thin pools, the transaction id and creation transaction id for thins.", 0)
FIELD(SEGS, seg, NUM, "ThId", list, 0, thinid, thin_id, "For thin volume, the thin device id.", 0)
FIELD(SEGS, seg, SIZ, "Start", list, 0, segstart, seg_start, "Offset within the LV to the start of the segment in current units.", 0)
FIELD(SEGS, seg, NUM, "Start", list, 0, segstartpe, seg_start_pe, "Offset within the LV to the start of the segment in physical extents.", 0)
FIELD(SEGS, seg, SIZ, "SSize", list, 0, segsize, seg_size, "Size of segment in current units.", 0)
FIELD(SEGS, seg, SIZ, "SSize", list, 0, segsizepe, seg_size_pe, "Size of segment in physical extents.", 0)
FIELD(SEGS, seg, STR_LIST, "Seg Tags", tags, 0, tags, seg_tags, "Tags, if any.", 0)
FIELD(SEGS, seg, STR_LIST, "PE Ranges", list, 0, peranges, seg_pe_ranges, "Ranges of Physical Extents of underlying devices in command line format (deprecated, use seg_le_ranges for common format).", 0)
FIELD(SEGS, seg, STR_LIST, "LE Ranges", list, 0, leranges, seg_le_ranges, "Ranges of Logical Extents of underlying devices in command line format.", 0)
FIELD(SEGS, seg, STR_LIST, "Metadata LE Ranges", list, 0, metadataleranges, seg_metadata_le_ranges, "Ranges of Logical Extents of underlying metadata devices in command line format.", 0)
FIELD(SEGS, seg, STR_LIST, "Devices", list, 0, devices, devices, "Underlying devices used with starting extent numbers.", 0)
FIELD(SEGS, seg, STR_LIST, "Metadata Devs", list, 0, metadatadevices, metadata_devices, "Underlying metadata devices used with starting extent numbers.", 0)
FIELD(SEGS, seg, STR, "Monitor", list, 0, segmonitor, seg_monitor, "Dmeventd monitoring status of the segment.", 0)
FIELD(SEGS, seg, STR, "CachePolicy", list, 0, cache_policy, cache_policy, "The cache policy (cached segments only).", 0)
FIELD(SEGS, seg, STR_LIST, "CacheSettings", list, 0, cache_settings, cache_settings, "Cache settings/parameters (cached segments only).", 0)
FIELD(SEGS, seg, BIN, "VDOCompression", list, 0, vdo_compression, vdo_compression, "Set for compressed LV (vdopool).", 0)
FIELD(SEGS, seg, BIN, "VDODeduplication", list, 0, vdo_deduplication, vdo_deduplication, "Set for deduplicated LV (vdopool).", 0)
FIELD(SEGS, seg, BIN, "VDOMetadataHints", list, 0, vdo_use_metadata_hints, vdo_use_metadata_hints, "Use REQ_SYNC for writes (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOMinimumIOSize", list, 0, vdo_minimum_io_size, vdo_minimum_io_size, "Minimum acceptable IO size (vdopool).", 0)
FIELD(SEGS, seg, SIZ, "VDOBlockMapCacheSize", list, 0, vdo_block_map_cache_size, vdo_block_map_cache_size, "Allocated caching size (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOBlockMapEraLength", list, 0, vdo_block_map_era_length, vdo_block_map_era_length, "Speed of cache writes (vdopool).", 0)
FIELD(SEGS, seg, BIN, "VDOSparseIndex", list, 0, vdo_use_sparse_index, vdo_use_sparse_index, "Sparse indexing (vdopool).", 0)
FIELD(SEGS, seg, SIZ, "VDOIndexMemorySize", list, 0, vdo_index_memory_size, vdo_index_memory_size, "Allocated indexing memory (vdopool).", 0)
FIELD(SEGS, seg, SIZ, "VDOSlabSize", list, 0, vdo_slab_size, vdo_slab_size, "Increment size for growing (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOAckThreads", list, 0, vdo_ack_threads, vdo_ack_threads, "Acknowledging threads (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOBioThreads", list, 0, vdo_bio_threads, vdo_bio_threads, "IO submitting threads (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOBioRotation", list, 0, vdo_bio_rotation, vdo_bio_rotation, "IO enqueue (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOCPUThreads", list, 0, vdo_cpu_threads, vdo_cpu_threads, "CPU threads for compression and hashing (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOHashZoneThreads", list, 0, vdo_hash_zone_threads, vdo_hash_zone_threads, "Threads for subdivide parts (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOLogicalThreads", list, 0, vdo_logical_threads, vdo_logical_threads, "Logical threads for subdivide parts (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOPhysicalThreads", list, 0, vdo_physical_threads, vdo_physical_threads, "Physical threads for subdivide parts (vdopool).", 0)
FIELD(SEGS, seg, NUM, "VDOMaxDiscard", list, 0, vdo_max_discard, vdo_max_discard, "Maximum discard size volume can recieve (vdopool).", 0)
FIELD(SEGS, seg, STR, "VDOWritePolicy", list, 0, vdo_write_policy, vdo_write_policy, "Specified write policy (vdopool).", 0)
FIELD(SEGS, seg, SIZ, "VDOHeaderSize", list, 0, vdo_header_size, vdo_header_size, "Header size at front of vdopool.", 0)
/*
* End of SEGS type fields
*/
/*
* PVSEGS type fields
*/
FIELD(PVSEGS, pvseg, NUM, "Start", pe, 0, uint32, pvseg_start, "Physical Extent number of start of segment.", 0)
FIELD(PVSEGS, pvseg, NUM, "SSize", len, 0, uint32, pvseg_size, "Number of extents in segment.", 0)
/*
* End of PVSEGS type fields
*/
/* *INDENT-ON* */
View Git Blame Copy Permalink