.TH LVCHANGE 8 "LVM TOOLS" "Sistina Software UK" \" -*- nroff -*-
.SH NAME
lvchange \- change attributes of a logical volume
.SH SYNOPSIS
.B lvchange
[\-A/\-\-autobackup y/n] [\-a/\-\-available y/n]
[\-C/\-\-contiguous y/n] [\-d/\-\-debug] [\-h/\-?/\-\-help]
[\-p/\-\-permission r/w] [\-r/\-\-readahead ReadAheadSectors]
[\-v/\-\-verbose] LogicalVolumePath [LogicalVolumePath...]
.SH DESCRIPTION
lvchange allows you to change the attributes of a logical volume.
.SH OPTIONS
See \fBlvm\fP for common options.
.TP
.I \-A, \-\-autobackup y/n
Controls automatic backup of VG metadata after the change ( see
.B vgcfgbackup(8)
). Default is yes.
.TP
.I \-a, \-\-available y/n
Controls the availability of the logical volumes for use.
This is (among others) useful for changing the logical volume's name
( see
.B lvrename(8)
) safely.
.TP
.I \-C, \-\-contiguous y/n
Tries to set or resets the contiguous allocation policy for
logical volumes. It's only possible to change a non-contiguous
logical volume's allocation policy to contiguous, if all of the
allocated physical extents are already contiguous.
.TP
.I \-p, \-\-permission r/w
Change access permission to read-only or read/write.
.TP
.I \-r, \-\-readahead ReadAheadSectors
Change read ahead sector count per logical between 2 and 120.
.SH Examples
"lvchange -x n /dev/vg00/lvol1" prevents the allocation of any physical
extents on logical volume lvol1 in volume group vg00.
.SH SEE ALSO
.BR lvm (8), 
.BR lvcreate (8)