Man page - blkdeactivate(8)

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Package: dmsetup
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dmsetup

Manual

BLKDEACTIVATE

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLES
SEE ALSO

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 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.

OPTIONS

-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.

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 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