blkdeactivate — utility to deactivate block devices
blkdeactivate [
-d dm_options] [
-e] [
-h]
[
-l lvm_options] [
-m mpath_options] [
-r
mdraid_options] [
-o vdo_options] [
-u] [
-v]
[
device]
The blkdeactivate utility deactivates block devices. For mounted block devices,
it attempts to unmount it automatically before trying to deactivate. The
utility currently supports 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 devices are handled
using the
dmsetup(8) command. MD devices are handled using the
mdadm(8) command.
-
-d|--dmoptions dm_options
- Comma separated list of device-mapper specific options.
Accepted 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 separately.
-
-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
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 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.
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.
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 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 deactivation
of a device-mapper device fails, retry it and force removal.
#
blkdeactivate -d force,retry
dmsetup(8),
lsblk(8),
lvm(8),
mdadm(8),
multipathd(8),
vdo(8),
umount(8)