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_options] [-o vdo_options] [-u] [-v] [device]
DESCRIPTION
The blkdeactivate utility deactivates block devices. For mounted block
devices, it attempts to unmount it automatically before trying to deac-
tivate. The utility currently supports device-mapper devices (DM), in-
cluding LVM volumes and software RAID MD devices. LVM volumes are han-
dled directly using the lvm(8) command, the rest of device-mapper based
devices are handled using the dmsetup(8) command. MD devices are han-
dled using the mdadm(8) command.
OPTIONS
-d|--dmoptions dm_options
Comma separated list of device-mapper specific options. Accept-
ed dmsetup(8) options 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 itself 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. Deactivating the Volume Group as a whole
is quicker than deactivating each Logical Volume sepa-
rately.
-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 deactivation.
-m|--mpathoptions mpath_options
Comma-separated list of device-mapper multipath specific op-
tions:
disablequeueing
Disable queueing on all multipath devices before deacti-
vation. This avoids a situation where blkdeactivate may
end up waiting if all the paths are unavailable for any
underlying device-mapper multipath device.
-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. With-
out this option used, a device that is mounted is not deactivat-
ed.
-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, un-
mounting any mounted devices first, if possible.
# blkdeactivate -u /dev/vg/lvol0
Deactivate all supported block devices found in the system. If the de-
activation of a device-mapper device fails, retry it. Deactivate the
whole Volume Group at once when processing an LVM Logical Volume.
# blkdeactivate -u -d retry -l wholevg
Deactivate all supported block devices found in the system. If the de-
activation of a device-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 2.03.16(2) (2022-05-18) BLKDEACTIVATE(8)
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