1LVS(8)                      System Manager's Manual                     LVS(8)
2
3
4

NAME

6       lvs - Display information about logical volumes
7

SYNOPSIS

9       lvs
10           [ option_args ]
11           [ position_args ]
12

DESCRIPTION

14       lvs produces formatted output about LVs.
15

USAGE

17       lvs
18           [ -H|--history ]
19           [ -a|--all ]
20           [ -o|--options String ]
21           [ -S|--select String ]
22           [ -O|--sort String ]
23           [    --segments ]
24           [    --aligned ]
25           [    --binary ]
26           [    --configreport log|vg|lv|pv|pvseg|seg ]
27           [    --foreign ]
28           [    --ignorelockingfailure ]
29           [    --logonly ]
30           [    --nameprefixes ]
31           [    --noheadings ]
32           [    --nosuffix ]
33           [    --readonly ]
34           [    --reportformat basic|json ]
35           [    --rows ]
36           [    --separator String ]
37           [    --shared ]
38           [    --unbuffered ]
39           [    --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E ]
40           [    --unquoted ]
41           [ COMMON_OPTIONS ]
42           [ VG|LV|Tag ... ]
43
44       Common options for lvm:
45           [ -d|--debug ]
46           [ -h|--help ]
47           [ -q|--quiet ]
48           [ -t|--test ]
49           [ -v|--verbose ]
50           [ -y|--yes ]
51           [    --commandprofile String ]
52           [    --config String ]
53           [    --driverloaded y|n ]
54           [    --lockopt String ]
55           [    --longhelp ]
56           [    --nolocking ]
57           [    --profile String ]
58           [    --version ]
59

OPTIONS

61       --aligned
62              Use with --separator to align the output columns
63
64       -a|--all
65              Show information about internal LVs.  These are components of
66              normal LVs, such as mirrors, which are not independently acces‐
67              sible, e.g. not mountable.
68
69       --binary
70              Use binary values "0" or "1" instead of descriptive literal val‐
71              ues for columns that have exactly two valid values to report
72              (not counting the "unknown" value which denotes that the value
73              could not be determined).
74
75       --commandprofile String
76              The command profile to use for command configuration.  See
77              lvm.conf(5) for more information about profiles.
78
79       --config String
80              Config settings for the command. These override lvm.conf set‐
81              tings.  The String arg uses the same format as lvm.conf, or may
82              use section/field syntax.  See lvm.conf(5) for more information
83              about config.
84
85       --configreport log|vg|lv|pv|pvseg|seg
86              See lvmreport(7).
87
88       -d|--debug ...
89              Set debug level. Repeat from 1 to 6 times to increase the detail
90              of messages sent to the log file and/or syslog (if configured).
91
92       --driverloaded y|n
93              If set to no, the command will not attempt to use device-mapper.
94              For testing and debugging.
95
96       --foreign
97              Report/display foreign VGs that would otherwise be skipped.  See
98              lvmsystemid(7) for more information about foreign VGs.
99
100       -h|--help
101              Display help text.
102
103       -H|--history
104              Include historical LVs in the output.  (This has no effect
105              unless LVs were removed while lvm.conf metadata/record_lvs_his‐
106              tory was enabled.
107
108       --ignorelockingfailure
109              Allows a command to continue with read-only metadata operations
110              after locking failures.
111
112       --lockopt String
113              Used to pass options for special cases to lvmlockd.  See lvm‐
114              lockd(8) for more information.
115
116       --logonly
117              Suppress command report and display only log report.
118
119       --longhelp
120              Display long help text.
121
122       --nameprefixes
123              Add an "LVM2_" prefix plus the field name to the output. Useful
124              with --noheadings to produce a list of field=value pairs that
125              can be used to set environment variables (for example, in udev
126              rules).
127
128       --noheadings
129              Suppress the headings line that is normally the first line of
130              output.  Useful if grepping the output.
131
132       --nolocking
133              Disable locking.
134
135       --nosuffix
136              Suppress the suffix on output sizes. Use with --units (except h
137              and H) if processing the output.
138
139       -o|--options String
140              Comma-separated, ordered list of fields to display in columns.
141              String arg syntax is: [+|-|#]Field1[,Field2 ...]  The prefix +
142              will append the specified fields to the default fields, - will
143              remove the specified fields from the default fields, and # will
144              compact specified fields (removing them when empty for all
145              rows.)  Use -o help to view the list of all available fields.
146              Use separate lists of fields to add, remove or compact by
147              repeating the -o option: -o+field1,field2 -o-field3,field4
148              -o#field5.  These lists are evaluated from left to right.  Use
149              field name lv_all to view all LV fields, vg_all all VG fields,
150              pv_all all PV fields, pvseg_all all PV segment fields, seg_all
151              all LV segment fields, and pvseg_all all PV segment columns.
152              See the lvm.conf report section for more config options.  See
153              lvmreport(7) for more information about reporting.
154
155       --profile String
156              An alias for --commandprofile or --metadataprofile, depending on
157              the command.
158
159       -q|--quiet ...
160              Suppress output and log messages. Overrides --debug and --ver‐
161              bose.  Repeat once to also suppress any prompts with answer
162              'no'.
163
164       --readonly
165              Run the command in a special read-only mode which will read on-
166              disk metadata without needing to take any locks. This can be
167              used to peek inside metadata used by a virtual machine image
168              while the virtual machine is running. No attempt will be made to
169              communicate with the device-mapper kernel driver, so this option
170              is unable to report whether or not LVs are actually in use.
171
172       --reportformat basic|json
173              Overrides current output format for reports which is defined
174              globally by the report/output_format setting in lvm.conf.  basic
175              is the original format with columns and rows.  If there is more
176              than one report per command, each report is prefixed with the
177              report name for identification. json produces report output in
178              JSON format. See lvmreport(7) for more information.
179
180       --rows
181              Output columns as rows.
182
183       --segments
184              Use default columns that emphasize segment information.
185
186       -S|--select String
187              Select objects for processing and reporting based on specified
188              criteria.  The criteria syntax is described by --select help and
189              lvmreport(7).  For reporting commands, one row is displayed for
190              each object matching the criteria.  See --options help for
191              selectable object fields.  Rows can be displayed with an addi‐
192              tional "selected" field (-o selected) showing 1 if the row
193              matches the selection and 0 otherwise.  For non-reporting com‐
194              mands which process LVM entities, the selection is used to
195              choose items to process.
196
197       --separator String
198              String to use to separate each column. Useful if grepping the
199              output.
200
201       --shared
202              Report/display shared VGs that would otherwise be skipped when
203              lvmlockd is not being used on the host.  See lvmlockd(8) for
204              more information about shared VGs.
205
206       -O|--sort String
207              Comma-separated ordered list of columns to sort by. Replaces the
208              default selection. Precede any column with - for a reverse sort
209              on that column.
210
211       -t|--test
212              Run in test mode. Commands will not update metadata.  This is
213              implemented by disabling all metadata writing but nevertheless
214              returning success to the calling function. This may lead to
215              unusual error messages in multi-stage operations if a tool
216              relies on reading back metadata it believes has changed but
217              hasn't.
218
219       --unbuffered
220              Produce output immediately without sorting or aligning the col‐
221              umns properly.
222
223       --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E
224              All sizes are output in these units: human-(r)eadable with '<'
225              rounding indicator, (h)uman-readable, (b)ytes, (s)ectors,
226              (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes,
227              (e)xabytes.  Capitalise to use multiples of 1000 (S.I.) instead
228              of 1024.  Custom units can be specified, e.g. --units 3M.
229
230       --unquoted
231              When used with --nameprefixes, output values in the field=value
232              pairs are not quoted.
233
234       -v|--verbose ...
235              Set verbose level. Repeat from 1 to 4 times to increase the
236              detail of messages sent to stdout and stderr.
237
238       --version
239              Display version information.
240
241       -y|--yes
242              Do not prompt for confirmation interactively but always assume
243              the answer yes. Use with extreme caution.  (For automatic no,
244              see -qq.)
245

VARIABLES

247       VG
248              Volume Group name.  See lvm(8) for valid names.
249
250       LV
251              Logical  Volume  name.  See lvm(8) for valid names.  An LV posi‐
252              tional arg generally includes the VG  name  and  LV  name,  e.g.
253              VG/LV.
254
255       Tag
256              Tag  name.  See lvm(8) for information about tag names and using
257              tags in place of a VG, LV or PV.
258
259       String
260              See the option description for information about the string con‐
261              tent.
262
263       Size[UNIT]
264              Size  is  an  input number that accepts an optional unit.  Input
265              units are always treated as base two values, regardless of capi‐
266              talization,  e.g.  'k'  and 'K' both refer to 1024.  The default
267              input unit is specified by letter, followed by |UNIT.  UNIT rep‐
268              resents  other  possible  input units: bBsSkKmMgGtTpPeE.  b|B is
269              bytes, s|S is sectors of 512 bytes, k|K  is  kilobytes,  m|M  is
270              megabytes, g|G is gigabytes, t|T is terabytes, p|P is petabytes,
271              e|E is exabytes.  (This should not be confused with  the  output
272              control --units, where capital letters mean multiple of 1000.)
273

ENVIRONMENT VARIABLES

275       See  lvm(8)  for  information  about environment variables used by lvm.
276       For example, LVM_VG_NAME can generally be substituted for a required VG
277       parameter.
278

NOTES

280       The lv_attr bits are:
281
282       1  Volume  type:  (C)ache, (m)irrored, (M)irrored without initial sync,
283          (o)rigin, (O)rigin with merging  snapshot,  (r)aid,  (R)aid  without
284          initial  sync,  (s)napshot, merging (S)napshot, (p)vmove, (v)irtual,
285          mirror or raid (i)mage, mirror or raid (I)mage  out-of-sync,  mirror
286          (l)og device, under (c)onversion, thin (V)olume, (t)hin pool, (T)hin
287          pool data, v(d)o pool, v(D)o pool data, raid or pool  m(e)tadata  or
288          pool metadata spare.
289
290       2  Permissions:  (w)riteable,  (r)ead-only,  (R)ead-only  activation of
291          non-read-only volume
292
293       3  Allocation policy:  (a)nywhere, (c)ontiguous, (i)nherited,  c(l)ing,
294          (n)ormal  This  is  capitalised  if  the  volume is currently locked
295          against allocation changes, for example during pvmove(8).
296
297       4  fixed (m)inor
298
299       5  State:  (a)ctive,  (h)istorical,  (s)uspended,  (I)nvalid  snapshot,
300          invalid  (S)uspended  snapshot,  snapshot  (m)erge failed, suspended
301          snapshot (M)erge failed, mapped  (d)evice  present  without  tables,
302          mapped  device  present  with  (i)nactive  table,  thin-pool (c)heck
303          needed, suspended thin-pool (C)heck needed, (X) unknown
304
305       6  device (o)pen, (X) unknown
306
307       7  Target  type:  (C)ache,  (m)irror,   (r)aid,   (s)napshot,   (t)hin,
308          (u)nknown,  (v)irtual.   This  groups logical volumes related to the
309          same kernel target together.  So, for example, mirror images, mirror
310          logs  as  well  as  mirrors themselves appear as (m) if they use the
311          original device-mapper mirror kernel driver; whereas the raid equiv‐
312          alents using the md raid kernel driver all appear as (r).  Snapshots
313          using the original device-mapper driver appear as (s); whereas snap‐
314          shots  of thin volumes using the new thin provisioning driver appear
315          as (t).
316
317       8  Newly-allocated data blocks are overwritten with blocks of  (z)eroes
318          before use.
319
320       9  Volume  Health, where there are currently three groups of attributes
321          identified:
322
323          Common ones for all Logical Volumes: (p)artial, (X) unknown.
324          (p)artial signifies that one or more of the  Physical  Volumes  this
325          Logical  Volume  uses is missing from the system. (X) unknown signi‐
326          fies the status is unknown.
327
328          Related to RAID  Logical  Volumes:  (r)efresh  needed,  (m)ismatches
329          exist, (w)ritemostly.
330          (r)efresh  signifies  that  one or more of the Physical Volumes this
331          RAID Logical Volume uses had suffered a write error. The write error
332          could  be  due  to a temporary failure of that Physical Volume or an
333          indication that it is failing.  The device should  be  refreshed  or
334          replaced.  (m)ismatches  signifies  that the RAID logical volume has
335          portions of the array that are not  coherent.   Inconsistencies  are
336          detected  by  initiating  a  "check" on a RAID logical volume.  (The
337          scrubbing operations, "check" and "repair", can be  performed  on  a
338          RAID logical volume via the 'lvchange' command.)  (w)ritemostly sig‐
339          nifies the devices in a RAID 1 logical volume that have been  marked
340          write-mostly.  Re(s)haping signifies a RAID Logical Volume is either
341          undergoing a stripe addition/removal, a stripe size  or  RAID  algo‐
342          rithm  change.   (R)emove after reshape signifies freed striped raid
343          images to be removed.
344
345          Related to Thin pool Logical Volumes: (F)ailed, out of (D)ata space,
346          (M)etadata read only.
347          (F)ailed  is  set if thin pool encounters serious failures and hence
348          no further I/O is permitted at all. The out of (D)ata space  is  set
349          if  thin pool has run out of data space. (M)etadata read only signi‐
350          fies that thin pool encounters certain types of  failures  but  it's
351          still  possible  to  do  reads at least, but no metadata changes are
352          allowed.
353
354          Related to Thin Logical Volumes: (F)ailed.
355          (F)ailed is set when related thin pool enters Failed  state  and  no
356          further I/O is permitted at all.
357
358       10 s(k)ip activation: this volume is flagged to be skipped during acti‐
359          vation.
360

SEE ALSO

362       lvm(8) lvm.conf(5) lvmconfig(8)
363
364       pvchange(8)  pvck(8)  pvcreate(8)  pvdisplay(8)  pvmove(8)  pvremove(8)
365       pvresize(8) pvs(8) pvscan(8)
366
367       vgcfgbackup(8)  vgcfgrestore(8)  vgchange(8) vgck(8) vgcreate(8) vgcon‐
368       vert(8)  vgdisplay(8)  vgexport(8)  vgextend(8)  vgimport(8)  vgimport‐
369       clone(8)  vgmerge(8)  vgmknodes(8)  vgreduce(8) vgremove(8) vgrename(8)
370       vgs(8) vgscan(8) vgsplit(8)
371
372       lvcreate(8) lvchange(8)  lvconvert(8)  lvdisplay(8)  lvextend(8)  lvre‐
373       duce(8) lvremove(8) lvrename(8) lvresize(8) lvs(8) lvscan(8)
374
375       lvm-fullreport(8) lvm-lvpoll(8) lvm2-activation-generator(8) blkdeacti‐
376       vate(8) lvmdump(8)
377
378       dmeventd(8) lvmpolld(8)  lvmlockd(8)  lvmlockctl(8)  cmirrord(8)  lvmd‐
379       busd(8)
380
381       lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)
382
383
384
385Red Hat, Inc.          LVM TOOLS 2.03.06(2) (2019-10-23)                LVS(8)
Impressum