LVCHANGE(8)

NAME
lvchange - change attributes of a logical volume

SYNOPSIS
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...]

DESCRIPTION
lvchange allows you to change different attributes of a logical volume.

  OPTIONS

-A, --autobackup y/n
    Controls automatic backup of VG metadata after the change ( see vgcfgbackup(8) ). Default is yes.

-a, --available y/n
    Controls the availability of the logical volumes for use. This is (among others) usefull for changing the logical volume's name ( see lvrename(8) ) safely.

-C, --contiguous y/n
    Tries to set or resets the contiguous allocation policy for logical volumes. It's only possible to change a not contiguous logical volume's allocation policy to contiguous, if all of the allocated physical extents are already contiguous.

-d, --debug
    Enables additional debugging output (if compiled with DEBUG).

-h, -?, --help
    Print a usage message on standard output and exit successfully.

-p, --permission r/w
    Change access permission to read-only or read/write.

-r, --readahead ReadAheadSectors
    Change read ahead sector count per logical between 0 and 256.

-v, --verbose
    Gives verbose runtime information about lvchange's activities.

Examples
"lvchange -x n /dev/vg00/lvol1" disallows the allocation of any physical extents on logical volume lvol1 in volume group vg00.

DIAGNOSTICS
lvchange returns an exit state of 0 for success or > 0 for error:
1  invalid logical volume name
2  error checking existence of volume group
3  logical volume cannot be opened
4  logical volume access permissions cannot be set
5  logical volume status cannot be set
6  logical volume allocation policy cannot be set
7  VGDA for logical volume cannot be written to the physical volumes
8  error changing read ahesd sectors
95 driver/module not in kernel
96 invalid i/o protocol version
97 error locking logical volume manager
98 invalid lvmtab (run vgscan(8))
99 invalid command line

ENVIRONMENT VARIABLES

LVM_AUTOBACKUP
    If this variable is set to "no" then the automatic backup of VG metadata is turned off.

See also
lvm(8), lvcreate(8)

AUTHOR
Heinz Mauelshagen <linux-lvm@ez-darmstadt.telekom.de>