Provided by: lvm2_2.03.16-2ubuntu1_amd64 
NAME
lvs — Display information about logical volumes
SYNOPSIS
lvs
[ option_args ]
[ position_args ]
DESCRIPTION
lvs produces formatted output about LVs.
USAGE
lvs
[ -H|--history ]
[ -a|--all ]
[ -o|--options String ]
[ -S|--select String ]
[ -O|--sort String ]
[ --segments ]
[ --aligned ]
[ --binary ]
[ --configreport log|vg|lv|pv|pvseg|seg ]
[ --foreign ]
[ --ignorelockingfailure ]
[ --logonly ]
[ --nameprefixes ]
[ --noheadings ]
[ --nosuffix ]
[ --readonly ]
[ --reportformat basic|json ]
[ --rows ]
[ --separator String ]
[ --shared ]
[ --unbuffered ]
[ --units [Number]r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E ]
[ --unquoted ]
[ COMMON_OPTIONS ]
[ VG|LV|Tag ... ]
Common options for lvm:
[ -d|--debug ]
[ -h|--help ]
[ -q|--quiet ]
[ -t|--test ]
[ -v|--verbose ]
[ -y|--yes ]
[ --commandprofile String ]
[ --config String ]
[ --devices PV ]
[ --devicesfile String ]
[ --driverloaded y|n ]
[ --journal String ]
[ --lockopt String ]
[ --longhelp ]
[ --nohints ]
[ --nolocking ]
[ --profile String ]
[ --version ]
OPTIONS
--aligned
Use with --separator to align the output columns
-a|--all
Show information about internal LVs. These are components of normal LVs, such as
mirrors, which are not independently accessible, e.g. not mountable.
--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).
--commandprofile String
The command profile to use for command configuration. See lvm.conf(5) for more
information about profiles.
--config String
Config settings for the command. These override lvm.conf(5) settings. The String
arg uses the same format as lvm.conf(5), or may use section/field syntax. See
lvm.conf(5) for more information about config.
--configreport log|vg|lv|pv|pvseg|seg
See lvmreport(7).
-d|--debug ...
Set debug level. Repeat from 1 to 6 times to increase the detail of messages sent
to the log file and/or syslog (if configured).
--devices PV
Restricts the devices that are visible and accessible to the command. Devices not
listed will appear to be missing. This option can be repeated, or accepts a comma
separated list of devices. This overrides the devices file.
--devicesfile String
A file listing devices that LVM should use. The file must exist in
/etc/lvm/devices/ and is managed with the lvmdevices(8) command. This overrides
the lvm.conf(5) devices/devicesfile and devices/use_devicesfile settings.
--driverloaded y|n
If set to no, the command will not attempt to use device-mapper. For testing and
debugging.
--foreign
Report/display foreign VGs that would otherwise be skipped. See lvmsystemid(7) for
more information about foreign VGs.
-h|--help
Display help text.
-H|--history
Include historical LVs in the output. (This has no effect unless LVs were removed
while lvm.conf(5) metadata/record_lvs_history was enabled.
--ignorelockingfailure
Allows a command to continue with read-only metadata operations after locking
failures.
--journal String
Record information in the systemd journal. This information is in addition to
information enabled by the lvm.conf log/journal setting. command: record
information about the command. output: record the default command output. debug:
record full command debugging.
--lockopt String
Used to pass options for special cases to lvmlockd. See lvmlockd(8) for more
information.
--logonly
Suppress command report and display only log report.
--longhelp
Display long help text.
--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 rules).
--noheadings
Suppress the headings line that is normally the first line of output. Useful if
grepping the output.
--nohints
Do not use the hints file to locate devices for PVs. A command may read more
devices to find PVs when hints are not used. The command will still perform
standard hint file invalidation where appropriate.
--nolocking
Disable locking. Use with caution, concurrent commands may produce incorrect
results.
--nosuffix
Suppress the suffix on output sizes. Use with --units (except h and H) if
processing the output.
-o|--options String
Comma-separated, ordered list of fields to display in columns. String arg syntax
is: [+|-|#]Field1[,Field2 ...] The prefix + will append the specified fields to
the default fields, - will remove the specified fields from the default fields, and
# will compact specified fields (removing them when empty for all rows.) Use -o
help to view the list of all available fields. Use separate lists of fields to
add, remove or compact by repeating the -o option: -o+field1,field2
-o-field3,field4 -o#field5. These lists are evaluated from left to right. Use
field name lv_all to view all LV fields, vg_all all VG fields, pv_all all PV
fields, pvseg_all all PV segment fields, seg_all all LV segment fields, and
pvseg_all all PV segment columns. See the lvm.conf(5) report section for more
config options. See lvmreport(7) for more information about reporting.
--profile String
An alias for --commandprofile or --metadataprofile, depending on the command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and --verbose. Repeat once to
also suppress any prompts with answer 'no'.
--readonly
Run the command in a special read-only mode which will read on-disk metadata
without needing to take any locks. This can be used to peek inside metadata used by
a virtual machine image while the virtual machine is running. No attempt will be
made to communicate with the device-mapper kernel driver, so this option is unable
to report whether or not LVs are actually in use.
--reportformat basic|json
Overrides current output format for reports which is defined globally by the
report/output_format setting in lvm.conf(5). basic is the original format with
columns and rows. If there is more than one report per command, each report is
prefixed with the report name for identification. json produces report output in
JSON format. See lvmreport(7) for more information.
--rows
Output columns as rows.
--segments
Use default columns that emphasize segment information.
-S|--select String
Select objects for processing and reporting based on specified criteria. The
criteria syntax is described by --select help and lvmreport(7). For reporting
commands, one row is displayed for each object matching the criteria. See
--options help for selectable object fields. Rows can be displayed with an
additional "selected" field (-o selected) showing 1 if the row matches the
selection and 0 otherwise. For non-reporting commands which process LVM entities,
the selection is used to choose items to process.
--separator String
String to use to separate each column. Useful if grepping the output.
--shared
Report/display shared VGs that would otherwise be skipped when lvmlockd is not
being used on the host. See lvmlockd(8) for more information about shared VGs.
-O|--sort String
Comma-separated ordered list of columns to sort by. Replaces the default selection.
Precede any column with - for a reverse sort on that column.
-t|--test
Run in test mode. Commands will not update metadata. This is implemented by
disabling all metadata writing but nevertheless returning success to the calling
function. This may lead to unusual error messages in multi-stage operations if a
tool relies on reading back metadata it believes has changed but hasn't.
--unbuffered
Produce output immediately without sorting or aligning the columns properly.
--units [Number]r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E
All sizes are output in these units: human-(r)eadable with '<' rounding indicator,
(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. Custom units can be specified, e.g. --units 3M.
--unquoted
When used with --nameprefixes, output values in the field=value pairs are not
quoted.
-v|--verbose ...
Set verbose level. Repeat from 1 to 4 times to increase the detail of messages sent
to stdout and stderr.
--version
Display version information.
-y|--yes
Do not prompt for confirmation interactively but always assume the answer yes. Use
with extreme caution. (For automatic no, see -qq.)
VARIABLES
VG Volume Group name. See lvm(8) for valid names.
LV Logical Volume name. See lvm(8) for valid names. An LV positional arg generally
includes the VG name and LV name, e.g. VG/LV.
Tag Tag name. See lvm(8) for information about tag names and using tags in place of a
VG, LV or PV.
String See the option description for information about the string content.
Size[UNIT]
Size is an input number that accepts an optional unit. Input units are always
treated as base two values, regardless of capitalization, e.g. 'k' and 'K' both
refer to 1024. The default input unit is specified by letter, followed by |UNIT.
UNIT represents other possible input units: b|B is bytes, s|S is sectors of 512
bytes, k|K is KiB, m|M is MiB, g|G is GiB, t|T is TiB, p|P is PiB, e|E is EiB.
(This should not be confused with the output control --units, where capital letters
mean multiple of 1000.)
ENVIRONMENT VARIABLES
See lvm(8) for information about environment variables used by lvm. For example,
LVM_VG_NAME can generally be substituted for a required VG parameter.
NOTES
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, v(d)o pool, v(D)o 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, snapshot (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 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, 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 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.
Re(s)haping signifies a RAID Logical Volume is either undergoing a stripe
addition/removal, a stripe size or RAID algorithm change. (R)emove after reshape
signifies freed striped raid images to be removed.
Related to Thin pool Logical Volumes: (F)ailed, out of (D)ata space, (M)etadata read
only.
(F)ailed is set if thin pool encounters serious failures and hence no further I/O is
permitted at all. The out of (D)ata space is set if thin pool has run out of data
space. (M)etadata read only signifies that thin pool encounters certain types of
failures but it's still possible to do reads at least, but no metadata changes are
allowed.
Related to Thin Logical Volumes: (F)ailed.
(F)ailed is set when related thin pool enters Failed state and no further I/O is
permitted at all.
Related to writecache logical volumes: (E)rror.
(E)rror is set dm-writecache reports an error.
10 s(k)ip activation: this volume is flagged to be skipped during activation.
SEE ALSO
lvm(8), lvm.conf(5), lvmconfig(8), lvmdevices(8),
pvchange(8), pvck(8), pvcreate(8), pvdisplay(8), pvmove(8), pvremove(8), pvresize(8),
pvs(8), pvscan(8),
vgcfgbackup(8), vgcfgrestore(8), vgchange(8), vgck(8), vgcreate(8), vgconvert(8),
vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgimportdevices(8),
vgmerge(8), vgmknodes(8), vgreduce(8), vgremove(8), vgrename(8), vgs(8), vgscan(8),
vgsplit(8),
lvcreate(8), lvchange(8), lvconvert(8), lvdisplay(8), lvextend(8), lvreduce(8),
lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8),
lvm-fullreport(8), lvm-lvpoll(8), blkdeactivate(8), lvmdump(8),
dmeventd(8), lvmpolld(8), lvmlockd(8), lvmlockctl(8), cmirrord(8), lvmdbusd(8), fsadm(8),
lvmsystemid(7), lvmreport(7), lvmraid(7), lvmthin(7), lvmcache(7)