LVS(8) System Manager's Manual LVS(8)
NAME
lvs — report information about logical volumes
SYNOPSIS
lvs [--aligned] [--binary] [-a|--all] [--commandprofile ProfileName] [[--configreport ReportName]
[-o|--options [+|-|#]Field1[,Field2...] [-O|--sort [+|-]Key1[,Key2...]] [-S|--select Selection] ...]
[-d|--debug] [-h|-?|--help] [-H|--history] [--ignorelockingfailure] [--ignoreskippedcluster] [--logonly]
[--nameprefixes] [--noheadings] [--nosuffix] [+|-]Key1[,[+|-]Key2[,...]]] [-P|--partial] [--reportformat
{basic|json}] [--rows] [--separator Separator] [--segments] [--unbuffered] [--units hHbBsSkKmMgGtTpPeE]
[--unquoted] [-v|--verbose] [--version] [VolumeGroupName|LogicalVolume{Name|Path} [VolumeGroupName|LogicalVol‐
ume{Name|Path} ...]]
DESCRIPTION
lvs produces formatted output about logical volumes.
OPTIONS
See lvm(8) for common options.
--aligned
Use with --separator to align the output columns.
--all Include information in the output about internal Logical Volumes that are components of normally-acces‐
sible Logical Volumes, such as mirrors, but which are not independently accessible (e.g. not mount‐
able). The names of such Logical Volumes are enclosed within square brackets in the output. For exam‐
ple, after creating a mirror using lvcreate -m1 --mirrorlog disk , this option will reveal three inter‐
nal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog.
--binary
Use binary values "0" or "1" instead of descriptive literal values for columns that have exactly two
valid values to report (not counting the "unknown" value which denotes that the value could not be
determined).
--configreport ReportName
Make any subsequent -o, --options, -O, --sort or -S, --select to apply for ReportName where ReportName
is either 'lv' for command's main report or 'log' for log report. If --configreport option is not used
to identify a report, then command's main report is assumed. The log report is available only if
enabled by log/report_command_log lvm.conf(5) setting or if --logonly option is used.
-H , --history
Include historical logical volumes in the output. (This has no effect unless logical volumes were
removed while the configuration setting metadata/record_lvs_history was enabled.)
--logonly
Suppress the lvs report itself and display only log report on output.
--nameprefixes
Add an "LVM2_" prefix plus the field name to the output. Useful with --noheadings to produce a list of
field=value pairs that can be used to set environment variables (for example, in udev(7) rules).
--noheadings
Suppress the headings line that is normally the first line of output. Useful if grepping the output.
--nosuffix
Suppress the suffix on output sizes. Use with --units (except h and H) if processing the output.
Column names include: chunk_size, convert_lv, copy_percent, data_lv, devices, discards, lv_attr,
lv_host, lv_kernel_major, lv_kernel_minor, lv_kernel_read_ahead, lv_major, lv_minor, lv_name, lv_path,
lv_profile, lv_read_ahead, lv_size, lv_tags, lv_time, lv_uuid, metadata_lv, mirror_log, modules,
move_pv, origin, origin_size, pool_lv, raid_max_recovery_rate, raid_min_recovery_rate, raid_mis‐
match_count, raid_sync_action, raid_write_behind, region_size, segtype, seg_count, seg_pe_ranges,
seg_size, seg_size_pe, seg_start, seg_start_pe, seg_tags, snap_percent, stripes, stripe_size, sync_per‐
cent, thin_count, transaction_id, zero.
With --segments, any "seg_" prefixes are optional; otherwise any "lv_" prefixes are optional. Columns
mentioned in vgs(8) can also be chosen.
The lv_attr bits are:
1 Volume type: (C)ache, (m)irrored, (M)irrored without initial sync, (o)rigin, (O)rigin with merging
snapshot, (r)aid, (R)aid without initial sync, (s)napshot, merging (S)napshot, (p)vmove, (v)irtual,
mirror or raid (i)mage, mirror or raid (I)mage out-of-sync, mirror (l)og device, under (c)onversion,
thin (V)olume, (t)hin pool, (T)hin pool data, raid or pool m(e)tadata or pool metadata spare.
2 Permissions: (w)riteable, (r)ead-only, (R)ead-only activation of non-read-only volume
3 Allocation policy: (a)nywhere, (c)ontiguous, (i)nherited, c(l)ing, (n)ormal This is capitalised if
the volume is currently locked against allocation changes, for example during pvmove(8).
4 fixed (m)inor
5 State: (a)ctive, (h)istorical, (s)uspended, (I)nvalid snapshot, invalid (S)uspended snapshot, snap‐
shot (m)erge failed, suspended snapshot (M)erge failed, mapped (d)evice present without tables,
mapped device present with (i)nactive table, thin-pool (c)heck needed, suspended thin-pool (C)heck
needed, (X) unknown
6 device (o)pen, (X) unknown
7 Target type: (C)ache, (m)irror, (r)aid, (s)napshot, (t)hin, (u)nknown, (v)irtual. This groups logi‐
cal volumes related to the same kernel target together. So, for example, mirror images, mirror logs
as well as mirrors themselves appear as (m) if they use the original device-mapper mirror kernel
driver; whereas the raid equivalents using the md raid kernel driver all appear as (r). Snapshots
using the original device-mapper driver appear as (s); whereas snapshots of thin volumes using the
new thin provisioning driver appear as (t).
8 Newly-allocated data blocks are overwritten with blocks of (z)eroes before use.
9 Volume Health, where there are currently three groups of attributes identified:
Common ones for all Logical Volumes: (p)artial, (X) unknown.
(p)artial signifies that one or more of the Physical Volumes this Logical Volume uses is missing
from the system. (X) unknown signifies the status is unknown.
Related to RAID Logical Volumes: (r)efresh needed, (m)ismatches exist, (w)ritemostly.
(r)efresh signifies that one or more of the Physical Volumes this RAID Logical Volume uses had suf‐
fered a write error. The write error could be due to a temporary failure of that Physical Volume or
an indication that it is failing. The device should be refreshed or replaced. (m)ismatches signi‐
fies that the RAID logical volume has portions of the array that are not coherent. Inconsistencies
are detected by initiating a "check" on a RAID logical volume. (The scrubbing operations, "check"
and "repair", can be performed on a RAID logical volume via the 'lvchange' command.) (w)ritemostly
-O, --sort
Comma-separated ordered list of columns to sort by. Replaces the default selection. Precede any column
with '-' for a reverse sort on that column.
--rows Output columns as rows.
-S, --select Selection
Display only rows that match Selection criteria. All rows are displayed with the additional "selected"
column (-o selected) showing 1 if the row matches the Selection and 0 otherwise. The Selection criteria
are defined by specifying column names and their valid values (that can include reserved values) while
making use of supported comparison operators. See lvm(8) and -S, --select description for more detailed
information about constructing the Selection criteria. As a quick help and to see full list of column
names that can be used in Selection including the list of reserved values and the set of supported
selection operators, check the output of lvs -S help command.
--segments
Use default columns that emphasize segment information.
--separator Separator
String to use to separate each column. Useful if grepping the output.
--unbuffered
Produce output immediately without sorting or aligning the columns properly.
--units hHbBsSkKmMgGtTpPeE
All sizes are output in these units: (h)uman-readable, (b)ytes, (s)ectors, (k)ilobytes, (m)egabytes,
(g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes. Capitalise to use multiples of 1000 (S.I.) instead
of 1024. Can also specify custom units e.g. --units 3M
--unquoted
When used with --nameprefixes, output values in the field=value pairs are not quoted.
SEE ALSO
lvm(8), lvdisplay(8), pvs(8), vgs(8)
Sistina Software UK LVM TOOLS 2.02.166(2)-RHEL7 (2016-11-16) LVS(8)
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