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156 lines
5.3 KiB
Groff
156 lines
5.3 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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.RB [ \-a | \-\-all ]
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.RB [ \-\-aligned ]
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.RB [ \-d | \-\-debug ]
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.RB [ \-h | \-? | \-\-help ]
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.RB [ \-\-ignorelockingfailure ]
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.RB [ \-\-nameprefixes ]
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.RB [ \-\-noheadings ]
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.RB [ \-\-nosuffix ]
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.RB [ \-o | \-\-options
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.RI [ + ] Field [, Field ]]
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.RB [ \-O | \-\-sort
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.RI [ + | \- ] Key1 [,[ + | \- ] Key2 [,...]]]
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.RB [ \-P | \-\-partial ]
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.RB [ \-\-rows ]
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.RB [ \-\-segments ]
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.RB [ \-\-separator
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.IR Separator ]
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.RB [ \-\-unbuffered ]
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.RB [ \-\-units
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.IR hHbBsSkKmMgGtTpPeE ]
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.RB [ \-\-unquoted ]
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.RB [ \-v | \-\-verbose ]
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.RB [ \-\-version ]
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.RI [ VolumeGroupName
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.RI [ 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
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.BR lvm (8)
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for common options.
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.TP
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.B \-\-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
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.B lvcreate -m1 --mirrorlog disk
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, 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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.B \-\-aligned
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Use with \fB\-\-separator\fP to align the output columns.
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.TP
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.B \-\-nameprefixes
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Add an "LVM2_" prefix plus the field name to the output. Useful
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with \fB\-\-noheadings\fP to produce a list of field=value pairs that can
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be used to set environment variables (for example, in
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.BR udev (7)
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rules).
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.TP
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.B \-\-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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.B \-\-nosuffix
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Suppress the suffix on output sizes. Use with \fB\-\-units\fP
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(except h and H) if processing the output.
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.TP
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.BR \-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,
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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 \fB\-\-segments\fP, any "seg_" prefixes are optional;
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otherwise any "lv_" prefixes are optional. Columns mentioned in
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.BR vgs (8)
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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, (r)aid, (R)aid without initial sync,
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(s)napshot, merging (S)napshot, (p)vmove, (v)irtual,
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mirror or raid (i)mage, mirror or raid (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, raid or
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thin pool m(e)tadata
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.IP 2 3
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Permissions: (w)riteable, (r)ead-only, (R)ead-only activation of non-read-only
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volume
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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
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.BR pvmove (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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snapshot (m)erge failed, suspended snapshot (M)erge failed,
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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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.B \-\-segments
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Use default columns that emphasize segment information.
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.TP
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.BR \-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 '\fI\-\fP' for a reverse sort on that column.
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.TP
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.B \-\-rows
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Output columns as rows.
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.TP
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.B \-\-separator \fISeparator
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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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.B \-\-unbuffered
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Produce output immediately without sorting or aligning the columns properly.
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.TP
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.B \-\-units \fIhHbBsSkKmMgGtTpPeE
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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. \fB\-\-units 3M\fP
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.TP
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.B \-\-unquoted
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When used with \fB\-\-nameprefixes\fP, output values in the field=value
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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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