отображение информации о логических томах (Display information about logical volumes)
Имя (Name)
lvs — Display information about logical volumes
Синопсис (Synopsis)
lvs
[ option_args ]
[ position_args ]
Описание (Description)
lvs produces formatted output about LVs.
Использование (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 ]
[ --lockopt String ]
[ --longhelp ]
[ --nolocking ]
[ --profile String ]
[ --version ]
Параметры (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
Devices that the command can use. 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.
--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.
--nolocking
Disable locking.
--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.)
Переменные (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.)
Переменные окружения (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.
Примечание (Note)
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.
Смотри также (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), lvm2-activation-generator(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)
