LVCHANGE(8) |
System Manager's Manual |
LVCHANGE(8) |
lvchange - change attributes of a logical volume
lvchange [--addtag Tag] [-A|--autobackup y|n] [-a|--available
y|n|ey|en|ly|ln] [--alloc AllocationPolicy] [-C|--contiguous y|n] [-d|--debug]
[--deltag Tag] [--resync] [-h|-?|--help] [--ignorelockingfailure]
[--ignoremonitoring] [--monitor {y|n}] [-M|--persistent y|n] [--minor minor]
[-P|--partial] [-p|--permission r|rw] [-r/--readahead
ReadAheadSectors|auto|none] [--refresh] [-t|--test] [-v|--verbose]
LogicalVolumePath [LogicalVolumePath...]
lvchange allows you to change the attributes of a logical volume including
making them known to the kernel ready for use.
See lvm for common options.
- -a, --available y|n|ey|en|ly|ln
- Controls the availability of the logical volumes for use. Communicates
with the kernel device-mapper driver via libdevmapper to activate (-ay) or
deactivate (-an) the logical volumes.
- If clustered locking is enabled, -aey will activate exclusively on one
node and -aly will activate only on the local node. To deactivate only on
the local node use -aln. Logical volumes with single-host snapshots are
always activated exclusively because they can only be used on one node at
once.
- -C, --contiguous y|n
- Tries to set or reset 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.
- --resync
- Forces the complete resynchronization of a mirror. In normal circumstances
you should not need this option because synchronization happens
automatically. Data is read from the primary mirror device and copied to
the others, so this can take a considerable amount of time - and during
this time you are without a complete redundant copy of your data.
- --minor minor
- Set the minor number.
- --monitor y|n
- Controls whether or not a mirrored logical volume is monitored by
dmeventd, if it is installed. If a device used by a monitored mirror
reports an I/O error, the failure is handled according to
mirror_image_fault_policy and mirror_log_fault_policy set in
lvm.conf.
- --ignoremonitoring
- Make no attempt to interact with dmeventd unless --monitor is specified.
Do not use this if dmeventd is already monitoring a device.
- -M, --persistent y|n
- Set to y to make the minor number specified persistent.
- -p, --permission r|rw
- Change access permission to read-only or read/write.
- -r, --readahead ReadAheadSectors|auto|none
- Set read ahead sector count of this logical volume. For volume groups with
metadata in lvm1 format, this must be a value between 2 and 120 sectors.
The default value is "auto" which allows the kernel to choose a
suitable value automatically. "None" is equivalent to specifying
zero.
- --refresh
- If the logical volume is active, reload its metadata. This is not
necessary in normal operation, but may be useful if something has gone
wrong or if you're doing clustering manually without a clustered lock
manager.
"lvchange -pr vg00/lvol1" changes the permission on volume lvol1 in
volume group vg00 to be read-only.
lvm(8), lvcreate(8), vgchange(8)