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103 lines
3.0 KiB
Groff
103 lines
3.0 KiB
Groff
.TH LVDISPLAY 8 "LVM TOOLS #VERSION#" "Sistina Software UK" \" -*- nroff -*-
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.SH NAME
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lvdisplay \- display attributes of a logical volume
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.SH SYNOPSIS
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.B lvdisplay
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[\-a|\-\-all]
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[\-c|\-\-colon] [\-d|\-\-debug] [\-h|\-?|\-\-help]
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[\-\-ignorelockingfailure]
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[\-\-maps]
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[\-\-nosuffix]
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[\-P|\-\-partial]
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[\-\-units hHbBsSkKmMgGtTpPeE]
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[\-v|\-\-verbose]
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[\-\-version] [LogicalVolumePath [LogicalVolumePath...]]
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.br
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.br
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.B lvdisplay \-\-columns | \-C
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[\-\-aligned]
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[\-a|\-\-all]
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[\-d|\-\-debug] [\-h|\-?|\-\-help]
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[\-\-ignorelockingfailure]
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[\-\-noheadings]
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[\-\-nosuffix]
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[\-o|\-\-options [+]Field[,Field]]
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[\-O|\-\-sort [+|-]Key1[,[+|-]Key2[,...]]]
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[\-P|\-\-partial]
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[\-\-segments]
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[\-\-separator Separator]
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[\-\-unbuffered]
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[\-\-units hHbBsSkKmMgGtTpPeE]
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[\-v|\-\-verbose]
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[\-\-version] [LogicalVolumePath [LogicalVolumePath...]]
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.SH DESCRIPTION
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lvdisplay allows you to see the attributes of a logical volume
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like size, read/write status, snapshot information etc.
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.P
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\fBlvs\fP (8) is an alternative that provides the same information
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in the style of \fBps\fP (1). \fBlvs\fP is recommended over
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\fBlvdisplay\fP.
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.SH OPTIONS
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See \fBlvm\fP for common options and \fBlvs\fP for options given with
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\fB\-\-columns\fP.
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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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For example, after creating a mirror using 'lvcreate -m1 --mirrorlog disk',
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this option will reveal three internal Logical Volumes, with suffixes
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mimage_0, mimage_1, and mlog.
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.TP
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.I \-c, \-\-colon
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Generate colon separated output for easier parsing in scripts or programs.
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N.B. \fBlvs\fP (8) provides considerably more control over the output.
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.nf
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The values are:
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* logical volume name
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* volume group name
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* logical volume access
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* logical volume status
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* internal logical volume number
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* open count of logical volume
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* logical volume size in sectors
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* current logical extents associated to logical volume
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* allocated logical extents of logical volume
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* allocation policy of logical volume
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* read ahead sectors of logical volume
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* major device number of logical volume
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* minor device number of logical volume
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.fi
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.TP
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.I \-m, \-\-maps
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Display the mapping of logical extents to physical volumes and
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physical extents. To map physical extents
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to logical extents use
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.BR
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\fBpvs --segments -o+lv_name,seg_start_pe,segtype\fP.
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.TP
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.I \-\-columns | \-C
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Display output in columns, the equivalent of \fBlvs\fP. Options listed
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are the same as options given in \fBlvs (8)\fP.
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.SH Examples
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"lvdisplay -v /dev/vg00/lvol2" shows attributes of that logical volume.
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If snapshot
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logical volumes have been created for this original logical volume,
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this command shows a list of all snapshot logical volumes and their
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status (active or inactive) as well.
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"lvdisplay /dev/vg00/snapshot" shows the attributes of this snapshot
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logical volume and also which original logical volume
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it is associated with.
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.SH SEE ALSO
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.BR lvm (8),
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.BR lvcreate (8),
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.BR lvscan (8),
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.BR pvs (8)
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