LVCHANGE(8)LVCHANGE(8)NAMElvchange - change attributes of a logical volume
SYNOPSISlvchange [--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] [--ignorelocking‐
failure] [--ignoremonitoring] [--monitor {y|n}] [--poll {y|n}]
[--noudevsync] [-M|--persistent y|n] [--minor minor] [-P|--partial]
[-p|--permission r|rw] [-r/--readahead ReadAheadSectors|auto|none]
[--refresh] [-t|--test] [-v|--verbose] LogicalVolumePath [LogicalVol‐
umePath...]
DESCRIPTIONlvchange allows you to change the attributes of a logical volume
including making them known to the kernel ready for use.
OPTIONS
See lvm for common options.
-a, --available y|n|ey|en|ly|ln
Controls the availability of the logical volumes for use. Com‐
municates 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 logi‐
cal volumes. It's only possible to change a non-contiguous logi‐
cal 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 synchro‐
nization happens automatically. Data is read from the primary
mirror device and copied to the others, so this can take a con‐
siderable 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 moni‐
tored mirror reports an I/O error, the failure is handled
according to mirror_image_fault_policy and mirror_log_fault_pol‐
icy set in lvm.conf.
--poll y|n
Without polling a logical volume's backgrounded transformation
process will never complete. If there is an incomplete pvmove
or lvconvert (for example, on rebooting after a crash), use
--poll y to restart the process from its last checkpoint. How‐
ever, it may not be appropriate to immediately poll a logical
volume when it is activated, use --poll n to defer and then
--poll y to restart the process.
--noudevsync
Disable udev synchronisation. The process will not wait for
notification from udev. It will continue irrespective of any
possible udev processing in the background. You should only use
this if udev is not running or has rules that ignore the devices
LVM2 creates.
--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 some‐
thing has gone wrong or if you're doing clustering manually
without a clustered lock manager.
Examples
"lvchange -pr vg00/lvol1" changes the permission on volume lvol1 in
volume group vg00 to be read-only.
SEE ALSOlvm(8), lvcreate(8), vgchange(8)Sistina Software UK LVM TOOLS 2.02.61(1) (2010-02-15) LVCHANGE(8)
