NAME¶
lvs — report information about logical volumes
SYNOPSIS¶
lvs [
--aligned] [
--binary] [
-a|
--all]
[
--commandprofile ProfileName] [
-d|
--debug]
[
-h|
-?|
--help] [
--ignorelockingfailure]
[
--ignoreskippedcluster] [
--nameprefixes] [
--noheadings]
[
--nosuffix] [
-o|
--options
[
+]
Field[,
Field]] [
-O|
--sort
[
+|
-]
Key1[,[
+|
-]
Key2[,...]]]
[
-P|
--partial] [
--rows] [
-S|
--select
Selection] [
--separator Separator] [
--segments]
[
--unbuffered] [
--units hHbBsSkKmMgGtTpPeE]
[
--unquoted] [
-v|
--verbose] [
--version]
[
VolumeGroupName|
LogicalVolume{
Name|
Path}
[
VolumeGroupName|
LogicalVolume{
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.
- --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).
- --all
- Include information in the output about internal Logical Volumes that are
components of normally-accessible Logical Volumes, such as mirrors, but
which are not independently accessible (e.g. not mountable). The names of
such Logical Volumes are enclosed within square brackets in the output.
For example, after creating a mirror using lvcreate -m1 --mirrorlog
disk , this option will reveal three internal Logical Volumes, with
suffixes mimage_0, mimage_1, and mlog.
- --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.
- -o, --options
- Comma-separated ordered list of columns. Precede the list with '+'
to append to the default selection of columns instead of replacing
it.
- Use -o lv_all to select all logical volume columns, and -o
seg_all to select all logical volume segment columns.
- Use -o help to view the full list of columns available.
- 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_mismatch_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_percent, thin_count,
transaction_id, writebehind, 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, (s)uspended, (I)nvalid snapshot, invalid (S)uspended
snapshot, snapshot (m)erge failed, suspended snapshot (M)erge failed,
mapped (d)evice present without tables, mapped device present with
(i)nactive table, (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 logical 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: (p)artial, (r)efresh needed, (m)ismatches exist,
(w)ritemostly, (X) unknown. (p)artial signifies that one or more of the
Physical Volumes this Logical Volume uses is missing from the system.
(r)efresh signifies that one or more of the Physical Volumes this RAID
Logical Volume uses had suffered 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
signifies 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 signifies the
devices in a RAID 1 logical volume that have been marked
write-mostly.
- 10
- s(k)ip activation: this volume is flagged to be skipped during
activation.
- -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)