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Manpage of LVCHANGE

LVCHANGE

Section: Maintenance Commands (8)
Updated: LVM TOOLS
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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.  

DIAGNOSTICS

lvchange returns an exit code 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 ahead 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 disabled.
LVM_VG_MAX_BACKUPS
This variable determines the backup history depth of kept VGDA copy files in /etc/lvmconf. It can be set to a positive number between 0 and 999. The higher this number is, the more changes you can restore using vgcfgrestore(8).
LVM_VG_NAME
The default Volume Group Name to use. Setting this variable enables you to enter just the Logical Volume Name rather than its complete path.

 

See also

lvm(8), lvcreate(8)  

AUTHOR

Heinz Mauelshagen <Linux-LVM@Sistina.com>


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
Examples
DIAGNOSTICS
ENVIRONMENT VARIABLES
See also
AUTHOR

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Time: 00:26:26 GMT, March 05, 2024