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Diffstat (limited to 'man/lvreduce.8.in')
| -rw-r--r-- | man/lvreduce.8.in | 72 |
1 files changed, 41 insertions, 31 deletions
diff --git a/man/lvreduce.8.in b/man/lvreduce.8.in index fc772233..4cfde2b8 100644 --- a/man/lvreduce.8.in +++ b/man/lvreduce.8.in @@ -3,15 +3,22 @@ lvreduce \- reduce the size of a logical volume .SH SYNOPSIS .B lvreduce -[\-A|\-\-autobackup y|n] [\-d|\-\-debug] [\-f|\-\-force] -[\-h|\-?|\-\-help] -[\-\-noudevsync] -{\-l|\-\-extents [\-]LogicalExtentsNumber[%{VG|LV|FREE|ORIGIN}] | -\-L|\-\-size [\-]LogicalVolumeSize[bBsSkKmMgGtTpPeE]} -[\-n|\-\-nofsck] -[\-r|\-\-resizefs] -[\-t|\-\-test] -[\-v|\-\-verbose] LogicalVolume[Path] +.RB [ \-A | \-\-autobackup +.RI { y | n }] +.RB [ \-d | \-\-debug ] +.RB [ \-h | \-\-help ] +.RB [ \-t | \-\-test ] +.RB [ \-v | \-\-verbose ] +.RB [ \-\-version ] +.RB [ \-f | \-\-force ] +.RB [ \-\-noudevsync ] +.RB { \-l | \-\-extents +.RI [ \- ] LogicalExtentsNumber [ % { VG | LV | FREE | ORIGIN "}] |" +.RB [ \-L | \-\-size +.RI [ \- ] LogicalVolumeSize [ bBsSkKmMgGtTpPeE ]} +.RB [ \-n | \-\-nofsck ] +.RB [ \-r | \-\-resizefs ] +.IR LogicalVolume { Name | Path } .SH DESCRIPTION lvreduce allows you to reduce the size of a logical volume. Be careful when reducing a logical volume's size, because data in the @@ -23,61 +30,64 @@ resized running lvreduce so that the extents that are to be removed are not in use. .br Shrinking snapshot logical volumes (see -.B lvcreate(8) +.BR lvcreate (8) for information to create snapshots) is supported as well. But to change the number of copies in a mirrored logical volume use -.B lvconvert (8). +.BR lvconvert (8). .br Sizes will be rounded if necessary - for example, the volume size must be an exact number of extents and the size of a striped segment must be a multiple of the number of stripes. .br .SH OPTIONS -See \fBlvm\fP for common options. +See +.BR lvm (8) +for common options. .TP -.I \-f, \-\-force +.BR \-f ", " \-\-force Force size reduction without prompting even when it may cause data loss. .TP -.I \-\-noudevsync +.BR \-\-noudevsync Disable udev synchronisation. The process will not wait for notification from udev. It will continue irrespective of any possible udev processing in the background. You should only use this if udev is not running or has rules that ignore the devices LVM2 creates. .TP -.I \-l, \-\-extents [\-]LogicalExtentsNumber[%{VG|LV|FREE|ORIGIN}] +.IR \fB\-l ", " \fB\-\-extents " [" \- ] LogicalExtentsNumber [ % { VG | LV | FREE | ORIGIN }] Reduce or set the logical volume size in units of logical extents. -With the - sign the value will be subtracted from +With the \fI-\fP sign the value will be subtracted from the logical volume's actual size and without it the value will be taken as an absolute size. The number can also be expressed as a percentage of the total space -in the Volume Group with the suffix %VG, relative to the existing -size of the Logical Volume with the suffix %LV, as a percentage of the -remaining free space in the Volume Group with the suffix %FREE, or (for +in the Volume Group with the suffix \fI%VG\fP, relative to the existing +size of the Logical Volume with the suffix \fI%LV\fP, as a percentage of the +remaining free space in the Volume Group with the suffix \fI%FREE\fP, or (for a snapshot) as a percentage of the total space in the Origin Logical -Volume with the suffix %ORIGIN. +Volume with the suffix \fI%ORIGIN\fP. .TP -.I \-L, \-\-size [\-]LogicalVolumeSize[bBsSkKmMgGtTpPeE] +.IR \fB\-L ", " \fB\-\-size " [" \- ] LogicalVolumeSize [ bBsSkKmMgGtTpPeE ] Reduce or set the logical volume size in units of megabytes. -A size suffix of k for kilobyte, m for megabyte, -g for gigabytes, t for terabytes, p for petabytes -or e for exabytes is optional. -With the - sign the value will be subtracted from +A size suffix of \fIk\fP for kilobyte, \fIm\fP for megabyte, +\fIg\fP for gigabytes, \fIt\fP for terabytes, \fIp\fP for petabytes +or \fIe\fP for exabytes is optional. +With the \fI-\fP sign the value will be subtracted from the logical volume's actual size and without it it will be taken as an absolute size. .TP -.I \-n, \-\-nofsck +.BR \-n ", " \-\-nofsck Do not perform fsck before resizing filesystem when filesystem requires it. You may need to use \fB--force\fR to proceed with this option. .TP -.I \-r, \-\-resizefs +.BR \-r ", " \-\-resizefs Resize underlying filesystem together with the logical volume using -\fBfsadm\fR(8). -.SH Example -"lvreduce -l -3 vg00/lvol1" reduces the size of logical volume lvol1 -in volume group vg00 by 3 logical extents. +.BR fsadm (8). +.SH EXAMPLES +Reduce the size of logical volume lvol1 in volume group vg00 by 3 logical extents: +.sp +.B lvreduce -l -3 vg00/lvol1 .SH SEE ALSO .BR fsadm (8), .BR lvchange (8), |