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130 lines
4.9 KiB
Groff
130 lines
4.9 KiB
Groff
.TH LVS 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
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.SH NAME
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lvs \- report information about logical volumes
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.SH SYNOPSIS
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.B lvs
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[\-a|\-\-all]
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[\-\-aligned] [\-d|\-\-debug] [\-h|\-?|\-\-help]
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[\-\-ignorelockingfailure] [\-\-nameprefixes] [\-\-noheadings] [\-\-nosuffix]
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[\-o|\-\-options [+]Field[,Field]]
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[\-O|\-\-sort [+|-]Key1[,[+|-]Key2[,...]]]
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[\-P|\-\-partial] [\-\-rows] [\-\-segments]
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[\-\-separator Separator]
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[\-\-unbuffered]
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[\-\-units hHbBsSkKmMgGtTpPeE]
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[\-\-unquoted]
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[\-v|\-\-verbose]
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[\-\-version] [VolumeGroupName [VolumeGroupName...]]
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.SH DESCRIPTION
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lvs produces formatted output about logical volumes.
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.SH OPTIONS
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See \fBlvm\fP for common options.
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.TP
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.I \-\-all
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Include information in the output about internal Logical Volumes that
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are components of normally-accessible Logical Volumes, such as mirrors,
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but which are not independently accessible (e.g. not mountable).
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The names of such Logical Volumes are enclosed within square brackets
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in the output. For example, after creating a mirror using 'lvcreate -m1
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--mirrorlog disk', this option will reveal three internal Logical
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Volumes, with suffixes mimage_0, mimage_1, and mlog.
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.TP
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.I \-\-aligned
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Use with \-\-separator to align the output columns.
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.TP
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.I \-\-nameprefixes
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Add an "LVM2_" prefix plus the field name to the output. Useful
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with --noheadings to produce a list of field=value pairs that can
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be used to set environment variables (for example, in \fBudev (7)\fP rules).
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.TP
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.I \-\-noheadings
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Suppress the headings line that is normally the first line of output.
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Useful if grepping the output.
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.TP
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.I \-\-nosuffix
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Suppress the suffix on output sizes. Use with \-\-units (except h and H)
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if processing the output.
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.TP
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.I \-o, \-\-options
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Comma-separated ordered list of columns. Precede the list with '+' to append
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to the default selection of columns instead of replacing it.
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.IP
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Use \fb-o lv_all\fP to select all logical volume columns, and \fb-o seg_all\fP
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to select all logical volume segment columns.
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.IP
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Use \fb-o help\fP to view the full list of columns available.
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.IP
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Column names include:
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lv_uuid, lv_name, lv_path, lv_attr, lv_major, lv_minor, lv_read_ahead, lv_kernel_major,
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lv_kernel_minor, lv_kernel_read_ahead, lv_size, seg_count, origin, origin_size,
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snap_percent, copy_percent, move_pv, convert_lv, lv_tags, mirror_log, thin_pool, modules,
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segtype, stripes, stripesize, regionsize, chunksize, seg_start, seg_start_pe,
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seg_size, seg_tags, seg_pe_ranges, devices.
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.IP
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With \-\-segments, any "seg_" prefixes are optional; otherwise any "lv_"
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prefixes are optional. Columns mentioned in \fBvgs (8)\fP
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can also be chosen.
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.IP
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The lv_attr bits are:
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.RS
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.IP 1 3
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Volume type: (m)irrored, (M)irrored without initial sync, (o)rigin,
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(O)rigin with merging snapshot, (s)napshot, merging (S)napshot, (p)vmove,
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(v)irtual, mirror (i)mage, mirror (I)mage out-of-sync, mirror (l)og device,
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under (c)onversion, thin (V)olume, (t)hin pool, (T)hin pool data, thin pool
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m(e)tadata
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.IP 2 3
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Permissions: (w)riteable, (r)ead-only
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.IP 3 3
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Allocation policy: (c)ontiguous, c(l)ing, (n)ormal, (a)nywhere, (i)nherited
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This is capitalised if the volume is currently locked against allocation
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changes, for example during \fBpvmove\fP (8).
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.IP 4 3
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fixed (m)inor
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.IP 5 3
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State: (a)ctive, (s)uspended, (I)nvalid snapshot, invalid (S)uspended snapshot,
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mapped (d)evice present without tables, mapped device present with (i)nactive table
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.IP 6 3
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device (o)pen
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.IP 7 3
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Target type: (m)irror, (r)aid, (s)napshot, (t)hin, (u)nknown, (v)irtual.
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This groups logical volumes related to the same kernel target together. So,
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for example, mirror images, mirror logs as well as mirrors themselves appear as
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(m) if they use the original device-mapper mirror kernel driver; whereas the raid
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equivalents using the md raid kernel driver all appear as (r).
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Snapshots using the original device-mapper driver appear as (s); whereas
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snapshots of thin volumes using the new thin provisioning driver appear as (t).
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.IP 8 3
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Newly-allocated data blocks are overwritten with blocks of (z)eroes before use.
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.RE
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.TP
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.I \-\-segments
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Use default columns that emphasize segment information.
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.TP
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.I \-O, \-\-sort
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Comma-separated ordered list of columns to sort by. Replaces the default
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selection. Precede any column with - for a reverse sort on that column.
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.TP
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.I \-\-rows
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Output columns as rows.
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.TP
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.I \-\-separator Separator
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String to use to separate each column. Useful if grepping the output.
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.TP
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.I \-\-unbuffered
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Produce output immediately without sorting or aligning the columns properly.
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.TP
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.I \-\-units hHbBsSkKmMgGtTpPeE
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All sizes are output in these units: (h)uman-readable, (b)ytes, (s)ectors,
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(k)ilobytes, (m)egabytes, (g)igabytes, (t)erabytes, (p)etabytes, (e)xabytes.
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Capitalise to use multiples of 1000 (S.I.) instead of 1024. Can also specify
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custom units e.g. \-\-units 3M
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.TP
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.I \-\-unquoted
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When used with --nameprefixes, output values in the field=value pairs are not quoted.
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.SH SEE ALSO
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.BR lvm (8),
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.BR lvdisplay (8),
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.BR pvs (8),
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.BR vgs (8)
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