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BLKDEACTIVATE(8) BLKDEACTIVATE(8)
NAME
blkdeactivate -- utility to deactivate block devices
SYNOPSIS
blkdeactivate [-d dm_options] [-e] [-h] [-l lvm_options] [-m mpath_options] [-r mdraid_op-
tions] [-o vdo_options] [-u] [-v] [device]
DESCRIPTION
The blkdeactivate utility deactivates block devices. For mounted block devices, it at-
tempts to unmount it automatically before trying to deactivate. The utility currently sup-
ports device-mapper devices (DM), including LVM volumes and software RAID MD devices. LVM
volumes are handled directly using the lvm(8) command, the rest of device-mapper based de-
vices are handled using the dmsetup(8) command. MD devices are handled using the mdadm(8)
command.
OPTIONS
-d, --dmoptions dm_options
Comma separated list of device-mapper specific options. Accepted dmsetup(8) op-
tions are:
retry Retry removal several times in case of failure.
force Force device removal.
-e, --errors
Show errors reported from tools called by blkdeactivate. Without this option, any
error messages from these external tools are suppressed and the blkdeactivate it-
self provides only a summary message to indicate the device was skipped.
-h, --help
Display the help text.
-l, --lvmoptions lvm_options
Comma-separated list of LVM specific options:
retry Retry removal several times in case of failure.
wholevg
Deactivate the whole LVM Volume Group when processing a Logical Volume. De-
activating the Volume Group as a whole is quicker than deactivating each
Logical Volume separately.
-m, --mpathoptions mpath_options
Comma-separated list of device-mapper multipath specific options:
disablequeueing
Disable queueing on all multipath devices before deactivation. This avoids
a situation where blkdeactivate may end up waiting if all the paths are un-
available for any underlying device-mapper multipath device.
-r, --mdraidoptions mdraid_options
Comma-separated list of MD RAID specific options:
wait Wait MD device's resync, recovery or reshape action to complete before deac-
tivation.
-o, --vdooptions vdo_options
Comma-separated list of VDO specific options:
configfile=file
Use specified VDO configuration file.
-u, --umount
Unmount a mounted device before trying to deactivate it. Without this option used,
a device that is mounted is not deactivated.
-v, --verbose
Run in verbose mode. Use --vv for even more verbose mode.
EXAMPLES
Deactivate all supported block devices found in the system, skipping mounted devices. #
blkdeactivate
Deactivate all supported block devices found in the system, unmounting any mounted devices
first, if possible. # blkdeactivate -u
Deactivate the device /dev/vg/lvol0 together with all its holders, unmounting any mounted
devices first, if possible. # blkdeactivate -u /dev/vg/lvol0
Deactivate all supported block devices found in the system. If the deactivation of a de-
vice-mapper device fails, retry it. Deactivate the whole Volume Group at once when pro-
cessing an LVM Logical Volume. # blkdeactivate -u -d retry -l wholevg
Deactivate all supported block devices found in the system. If the deactivation of a de-
vice-mapper device fails, retry it and force removal. # blkdeactivate -d force,retry
SEE ALSO
dmsetup(8), lsblk(8), lvm(8), mdadm(8), multipathd(8), vdo(8), umount(8)
Red Hat, Inc LVM TOOLS 2.03.11(2) (2021-01-08) BLKDEACTIVATE(8)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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