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lvm2/man/lvextend.8

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.TH LVEXTEND 8 "LVM TOOLS" "Sistina Software UK" \" -*- nroff -*-
.SH NAME
lvextend \- extend the size of a logical volume
.SH SYNOPSIS
.B lvextend
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[\-\-alloc AllocationPolicy]
[\-A/\-\-autobackup y/n] [\-d/\-\-debug] [\-h/\-?/\-\-help]
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[\-i/\-\-stripes Stripes [\-I/\-\-stripesize StripeSize]]
{\-l/\-\-extents [+]LogicalExtentsNumber |
\-L/\-\-size [+]LogicalVolumeSize[kKmMgGtT]}
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[\-t/\-\-test]
[\-v/\-\-verbose] LogicalVolumePath [PhysicalVolumePath...]
.SH DESCRIPTION
lvextend allows you to extend the size of a logical volume.
Extension of snapshot logical volumes (see
.B lvcreate(8)
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for information to create snapshots) is supported as well.
.SH OPTIONS
See \fBlvm\fP for common options.
.TP
.I \-l, \-\-extents [+]LogicalExtentsNumber
Extend or set the logical volume size in units of logical extents.
With the + sign the value is added to the actual size
of the logical volume and without it, the value is taken as an absolute one.
.TP
.I \-L, \-\-size [+]LogicalVolumeSize[kKmMgGtT]
Extend or set the logical volume size in units in units of megabytes.
A size suffix of M for megabytes, G for gigabytes or T for terabytes is
optional. With the + sign the value is added to the actual size
of the logical volume and without it, the value is taken as an absolute one.
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.TP
.I \-i, \-\-stripes Stripes
Gives the number of stripes for the extension.
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Not applicable to LVs using the original metadata LVM format, which must
use a single value throughout.
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.TP
.I \-I, \-\-stripesize StripeSize
Gives the number of kilobytes for the granularity of the stripes.
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Not applicable to LVs using the original metadata LVM format, which must
use a single value throughout.
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.br
StripeSize must be 2^n (n = 2 to 9)
.SH Examples
"lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of
that logical volume by 54MB on physical volume /dev/sdk3.
This is only possible if /dev/sdk3 is a member of volume group vg01 and
there are enough free physical extents in it.
.SH SEE ALSO
.BR lvm (8),
.BR lvcreate (8),
.BR lvreduce (8),
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.BR lvresize (8),
.BR lvchange (8)