1LVS(8) System Manager's Manual LVS(8)
2
6 lvs - Display information about logical volumes
7
9 lvs
10 [ option_args ]
11 [ position_args ]
12
14 lvs produces formatted output about LVs.
15
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 [ --ignoreskippedcluster ]
30 [ --logonly ]
31 [ --nameprefixes ]
32 [ --noheadings ]
33 [ --nolocking ]
34 [ --nosuffix ]
35 [ --readonly ]
36 [ --reportformat basic|json ]
37 [ --rows ]
38 [ --separator String ]
39 [ --shared ]
40 [ --trustcache ]
41 [ --unbuffered ]
42 [ --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E ]
43 [ --unquoted ]
44 [ COMMON_OPTIONS ]
45 [ VG|LV|Tag ... ]
46 Common options for lvm:
48 [ -d|--debug ]
49 [ -h|--help ]
50 [ -q|--quiet ]
51 [ -t|--test ]
52 [ -v|--verbose ]
53 [ -y|--yes ]
54 [ --commandprofile String ]
55 [ --config String ]
56 [ --driverloaded y|n ]
57 [ --lockopt String ]
58 [ --longhelp ]
59 [ --profile String ]
60 [ --version ]
61
63 --aligned
64 Use with --separator to align the output columns
65 -a|--all
67 Show information about internal LVs. These are components of
68 normal LVs, such as mirrors, which are not independently acces‐
69 sible, e.g. not mountable.
70 --binary
72 Use binary values "0" or "1" instead of descriptive literal val‐
73 ues for columns that have exactly two valid values to report
74 (not counting the "unknown" value which denotes that the value
75 could not be determined).
76 --commandprofile String
78 The command profile to use for command configuration. See
79 lvm.conf(5) for more information about profiles.
80 --config String
82 Config settings for the command. These override lvm.conf set‐
83 tings. The String arg uses the same format as lvm.conf, or may
84 use section/field syntax. See lvm.conf(5) for more information
85 about config.
86 --configreport log|vg|lv|pv|pvseg|seg
88 See lvmreport(7).
89 -d|--debug ...
91 Set debug level. Repeat from 1 to 6 times to increase the detail
92 of messages sent to the log file and/or syslog (if configured).
93 --driverloaded y|n
95 If set to no, the command will not attempt to use device-mapper.
96 For testing and debugging.
97 --foreign
99 Report/display foreign VGs that would otherwise be skipped. See
100 lvmsystemid(7) for more information about foreign VGs.
101 -h|--help
103 Display help text.
104 -H|--history
106 Include historical LVs in the output. (This has no effect
107 unless LVs were removed while lvm.conf metadata/record_lvs_his‐
108 tory was enabled.
109 --ignorelockingfailure
111 Allows a command to continue with read-only metadata operations
112 after locking failures.
113 --ignoreskippedcluster
115 Use to avoid exiting with an non-zero status code if the command
116 is run without clustered locking and clustered VGs are skipped.
117 --lockopt String
119 Used to pass options for special cases to lvmlockd. See lvm‐
120 lockd(8) for more information.
121 --logonly
123 Suppress command report and display only log report.
124 --longhelp
126 Display long help text.
127 --nameprefixes
129 Add an "LVM2_" prefix plus the field name to the output. Useful
130 with --noheadings to produce a list of field=value pairs that
131 can be used to set environment variables (for example, in udev
132 rules).
133 --noheadings
135 Suppress the headings line that is normally the first line of
136 output. Useful if grepping the output.
137 --nolocking
139 Disable locking.
140 --nosuffix
142 Suppress the suffix on output sizes. Use with --units (except h
143 and H) if processing the output.
144 -o|--options String
146 Comma-separated, ordered list of fields to display in columns.
147 String arg syntax is: [+|-|#]Field1[,Field2 ...] The prefix +
148 will append the specified fields to the default fields, - will
149 remove the specified fields from the default fields, and # will
150 compact specified fields (removing them when empty for all
151 rows.) Use -o help to view the list of all available fields.
152 Use separate lists of fields to add, remove or compact by
153 repeating the -o option: -o+field1,field2 -o-field3,field4
154 -o#field5. These lists are evaluated from left to right. Use
155 field name lv_all to view all LV fields, vg_all all VG fields,
156 pv_all all PV fields, pvseg_all all PV segment fields, seg_all
157 all LV segment fields, and pvseg_all all PV segment columns.
158 See the lvm.conf report section for more config options. See
159 lvmreport(7) for more information about reporting.
160 --profile String
162 An alias for --commandprofile or --metadataprofile, depending on
163 the command.
164 -q|--quiet ...
166 Suppress output and log messages. Overrides --debug and --ver‐
167 bose. Repeat once to also suppress any prompts with answer
168 'no'.
169 --readonly
171 Run the command in a special read-only mode which will read on-
172 disk metadata without needing to take any locks. This can be
173 used to peek inside metadata used by a virtual machine image
174 while the virtual machine is running. It can also be used to
175 peek inside the metadata of clustered VGs when clustered locking
176 is not configured or running. No attempt will be made to commu‐
177 nicate with the device-mapper kernel driver, so this option is
178 unable to report whether or not LVs are actually in use.
179 --reportformat basic|json
181 Overrides current output format for reports which is defined
182 globally by the report/output_format setting in lvm.conf. basic
183 is the original format with columns and rows. If there is more
184 than one report per command, each report is prefixed with the
185 report name for identification. json produces report output in
186 JSON format. See lvmreport(7) for more information.
187 --rows
189 Output columns as rows.
190 --segments
192 Use default columns that emphasize segment information.
193 -S|--select String
195 Select objects for processing and reporting based on specified
196 criteria. The criteria syntax is described by --select help and
197 lvmreport(7). For reporting commands, one row is displayed for
198 each object matching the criteria. See --options help for
199 selectable object fields. Rows can be displayed with an addi‐
200 tional "selected" field (-o selected) showing 1 if the row
201 matches the selection and 0 otherwise. For non-reporting com‐
202 mands which process LVM entities, the selection is used to
203 choose items to process.
204 --separator String
206 String to use to separate each column. Useful if grepping the
207 output.
208 --shared
210 Report/display shared VGs that would otherwise be skipped when
211 lvmlockd is not being used on the host. See lvmlockd(8) for
212 more information about shared VGs.
213 -O|--sort String
215 Comma-separated ordered list of columns to sort by. Replaces the
216 default selection. Precede any column with - for a reverse sort
217 on that column.
218 -t|--test
220 Run in test mode. Commands will not update metadata. This is
221 implemented by disabling all metadata writing but nevertheless
222 returning success to the calling function. This may lead to
223 unusual error messages in multi-stage operations if a tool
224 relies on reading back metadata it believes has changed but
225 hasn't.
226 --trustcache
228 Avoids certain device scanning during command processing. Do not
229 use.
230 --unbuffered
232 Produce output immediately without sorting or aligning the col‐
233 umns properly.
234 --units r|R|h|H|b|B|s|S|k|K|m|M|g|G|t|T|p|P|e|E
236 All sizes are output in these units: human-(r)eadable with '<'
237 rounding indicator, (h)uman-readable, (b)ytes, (s)ectors,
238 (k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes,
239 (e)xabytes. Capitalise to use multiples of 1000 (S.I.) instead
240 of 1024. Custom units can be specified, e.g. --units 3M.
241 --unquoted
243 When used with --nameprefixes, output values in the field=value
244 pairs are not quoted.
245 -v|--verbose ...
247 Set verbose level. Repeat from 1 to 4 times to increase the
248 detail of messages sent to stdout and stderr.
249 --version
251 Display version information.
252 -y|--yes
254 Do not prompt for confirmation interactively but always assume
255 the answer yes. Use with extreme caution. (For automatic no,
256 see -qq.)
257
259 VG
260 Volume Group name. See lvm(8) for valid names.
261 LV
263 Logical Volume name. See lvm(8) for valid names. An LV posi‐
264 tional arg generally includes the VG name and LV name, e.g.
265 VG/LV.
266 Tag
268 Tag name. See lvm(8) for information about tag names and using
269 tags in place of a VG, LV or PV.
270 String
272 See the option description for information about the string con‐
273 tent.
274 Size[UNIT]
276 Size is an input number that accepts an optional unit. Input
277 units are always treated as base two values, regardless of capi‐
278 talization, e.g. 'k' and 'K' both refer to 1024. The default
279 input unit is specified by letter, followed by |UNIT. UNIT rep‐
280 resents other possible input units: bBsSkKmMgGtTpPeE. b|B is
281 bytes, s|S is sectors of 512 bytes, k|K is kilobytes, m|M is
282 megabytes, g|G is gigabytes, t|T is terabytes, p|P is petabytes,
283 e|E is exabytes. (This should not be confused with the output
284 control --units, where capital letters mean multiple of 1000.)
285
287 See lvm(8) for information about environment variables used by lvm.
288 For example, LVM_VG_NAME can generally be substituted for a required VG
289 parameter.
290
292 The lv_attr bits are:
293 1 Volume type: (C)ache, (m)irrored, (M)irrored without initial sync,
295 (o)rigin, (O)rigin with merging snapshot, (r)aid, (R)aid without
296 initial sync, (s)napshot, merging (S)napshot, (p)vmove, (v)irtual,
297 mirror or raid (i)mage, mirror or raid (I)mage out-of-sync, mirror
298 (l)og device, under (c)onversion, thin (V)olume, (t)hin pool, (T)hin
299 pool data, raid or pool m(e)tadata or pool metadata spare.
300 2 Permissions: (w)riteable, (r)ead-only, (R)ead-only activation of
302 non-read-only volume
303 3 Allocation policy: (a)nywhere, (c)ontiguous, (i)nherited, c(l)ing,
305 (n)ormal This is capitalised if the volume is currently locked
306 against allocation changes, for example during pvmove(8).
307 4 fixed (m)inor
309 5 State: (a)ctive, (h)istorical, (s)uspended, (I)nvalid snapshot,
311 invalid (S)uspended snapshot, snapshot (m)erge failed, suspended
312 snapshot (M)erge failed, mapped (d)evice present without tables,
313 mapped device present with (i)nactive table, thin-pool (c)heck
314 needed, suspended thin-pool (C)heck needed, (X) unknown
315 6 device (o)pen, (X) unknown
317 7 Target type: (C)ache, (m)irror, (r)aid, (s)napshot, (t)hin,
319 (u)nknown, (v)irtual. This groups logical volumes related to the
320 same kernel target together. So, for example, mirror images, mirror
321 logs as well as mirrors themselves appear as (m) if they use the
322 original device-mapper mirror kernel driver; whereas the raid equiv‐
323 alents using the md raid kernel driver all appear as (r). Snapshots
324 using the original device-mapper driver appear as (s); whereas snap‐
325 shots of thin volumes using the new thin provisioning driver appear
326 as (t).
327 8 Newly-allocated data blocks are overwritten with blocks of (z)eroes
329 before use.
330 9 Volume Health, where there are currently three groups of attributes
332 identified:
333 Common ones for all Logical Volumes: (p)artial, (X) unknown.
335 (p)artial signifies that one or more of the Physical Volumes this
336 Logical Volume uses is missing from the system. (X) unknown signi‐
337 fies the status is unknown.
338 Related to RAID Logical Volumes: (r)efresh needed, (m)ismatches
340 exist, (w)ritemostly.
341 (r)efresh signifies that one or more of the Physical Volumes this
342 RAID Logical Volume uses had suffered a write error. The write error
343 could be due to a temporary failure of that Physical Volume or an
344 indication that it is failing. The device should be refreshed or
345 replaced. (m)ismatches signifies that the RAID logical volume has
346 portions of the array that are not coherent. Inconsistencies are
347 detected by initiating a "check" on a RAID logical volume. (The
348 scrubbing operations, "check" and "repair", can be performed on a
349 RAID logical volume via the 'lvchange' command.) (w)ritemostly sig‐
350 nifies the devices in a RAID 1 logical volume that have been marked
351 write-mostly. (R)emove after reshape signifies freed striped raid
352 images to be removed.
353 Related to Thin pool Logical Volumes: (F)ailed, out of (D)ata space,
355 (M)etadata read only.
356 (F)ailed is set if thin pool encounters serious failures and hence
357 no further I/O is permitted at all. The out of (D)ata space is set
358 if thin pool has run out of data space. (M)etadata read only signi‐
359 fies that thin pool encounters certain types of failures but it's
360 still possible to do reads at least, but no metadata changes are
361 allowed.
362 Related to Thin Logical Volumes: (F)ailed.
364 (F)ailed is set when related thin pool enters Failed state and no
365 further I/O is permitted at all.
366 10 s(k)ip activation: this volume is flagged to be skipped during acti‐
368 vation.
369
371 lvm(8) lvm.conf(5) lvmconfig(8)
372 pvchange(8) pvck(8) pvcreate(8) pvdisplay(8) pvmove(8) pvremove(8)
374 pvresize(8) pvs(8) pvscan(8)
375 vgcfgbackup(8) vgcfgrestore(8) vgchange(8) vgck(8) vgcreate(8) vgcon‐
377 vert(8) vgdisplay(8) vgexport(8) vgextend(8) vgimport(8) vgimport‐
378 clone(8) vgmerge(8) vgmknodes(8) vgreduce(8) vgremove(8) vgrename(8)
379 vgs(8) vgscan(8) vgsplit(8)
380 lvcreate(8) lvchange(8) lvconvert(8) lvdisplay(8) lvextend(8) lvre‐
382 duce(8) lvremove(8) lvrename(8) lvresize(8) lvs(8) lvscan(8)
383 lvm-fullreport(8) lvm-lvpoll(8) lvm2-activation-generator(8) blkdeacti‐
385 vate(8) lvmdump(8)
386 dmeventd(8) lvmetad(8) lvmpolld(8) lvmlockd(8) lvmlockctl(8) clvmd(8)
388 cmirrord(8) lvmdbusd(8)
389 lvmsystemid(7) lvmreport(7) lvmraid(7) lvmthin(7) lvmcache(7)
391Red Hat, Inc. LVM TOOLS 2.02.180(2)-RHEL7 (2018-07-20) LVS(8)