Linux / Unix Command: lvchange

Command Library

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|rw}] [-r|--readahead ReadAheadSectors] [-v/--verbose] LogicalVolumePath [LogicalVolumePath...]  

DESCRIPTION

lvchange allows you to change the 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) useful 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 non-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 2 and 120.

-v, --verbose

Gives verbose runtime information about lvchange's activities.

 

Examples

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

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