BLKDEACTIVATE(8)            System Manager's Manual           BLKDEACTIVATE(8)

NAME
       blkdeactivate -- utility to deactivate block devices

SYNOPSIS
       blkdeactivate [-d|--dmoptions dm_options] [-e|--errors] [-h|--help]
                     [-l|--lvmoptions lvm_options]
                     [-r|--mdraidoptions mdraid_options]
                     [-m|--mpathoptions mpath_options] [-u|--umount]
                     [-o|--vdooptions vdo_options] [-v|--verbose] [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.

       -u|--umount
              Unmount a mounted device before trying to deactivate it.
              Without this option used, a device that is mounted is not
              deactivated.

       -o|--vdooptions vdo_options
              Comma-separated list of VDO specific options:

              configfile=file
                     Use specified VDO configuration file.

       -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

SEE ALSO
       lvm(8),

       dmsetup(8),

       lsblk(8), mdadm(8), multipathd(8), vdo(8), umount(8)

Red Hat, Inc           LVM TOOLS 2.03.32(2) (2025-05-05)      BLKDEACTIVATE(8)