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e.g. lvcreate -l 100%FREE to create an LV using all available space.
lvextend -l 50%LV to increase an LV by 50% of its existing size.
lvcreate -l 20%VG to create an LV using 20% of the total VG size.
62 lines
2.4 KiB
Groff
62 lines
2.4 KiB
Groff
.TH LVEXTEND 8 "LVM TOOLS" "Sistina Software UK" \" -*- nroff -*-
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.SH NAME
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lvextend \- extend the size of a logical volume
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.SH SYNOPSIS
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.B lvextend
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[\-\-alloc AllocationPolicy]
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[\-A/\-\-autobackup y/n] [\-d/\-\-debug] [\-h/\-?/\-\-help]
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[\-i/\-\-stripes Stripes [\-I/\-\-stripesize StripeSize]]
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{\-l/\-\-extents [+]LogicalExtentsNumber[%{VG|LV|FREE}] |
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\-L/\-\-size [+]LogicalVolumeSize[kKmMgGtT]}
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[\-t/\-\-test]
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[\-v/\-\-verbose] LogicalVolumePath [PhysicalVolumePath...]
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.SH DESCRIPTION
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lvextend allows you to extend the size of a logical volume.
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Extension of snapshot logical volumes (see
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.B lvcreate(8)
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for information to create snapshots) is supported as well.
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But to change the number of copies in a mirrored logical
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volume use
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.BR lvconvert (8).
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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 \-l, \-\-extents [+]LogicalExtentsNumber[%{VG|LV|FREE}]
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Extend or set the logical volume size in units of logical extents.
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With the + sign the value is added to the actual size
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of the logical volume and without it, the value is taken as an absolute one.
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The number can also be expressed as a percentage of the total space
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in the Volume Group with the suffix %VG or relative to the existing
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size of the Logical Volume with the suffix %LV or as a percentage of the remaining
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free space in the Volume Group with the suffix %FREE.
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.TP
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.I \-L, \-\-size [+]LogicalVolumeSize[kKmMgGtT]
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Extend or set the logical volume size in units in units of megabytes.
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A size suffix of M for megabytes, G for gigabytes or T for terabytes is
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optional. With the + sign the value is added to the actual size
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of the logical volume and without it, the value is taken as an absolute one.
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.TP
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.I \-i, \-\-stripes Stripes
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Gives the number of stripes for the extension.
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Not applicable to LVs using the original metadata LVM format, which must
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use a single value throughout.
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.TP
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.I \-I, \-\-stripesize StripeSize
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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
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use a single value throughout.
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.br
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StripeSize must be 2^n (n = 2 to 9)
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.SH Examples
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"lvextend -L +54 /dev/vg01/lvol10 /dev/sdk3" tries to extend the size of
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that logical volume by 54MB on physical volume /dev/sdk3.
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This is only possible if /dev/sdk3 is a member of volume group vg01 and
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there are enough free physical extents in it.
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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 lvconvert (8),
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.BR lvreduce (8),
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.BR lvresize (8),
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.BR lvchange (8)
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