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), in‐
       cluding  LVM volumes and software RAID MD devices. LVM volumes are handled directly using the lvm(8) com‐
       mand, 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 mes‐
              sage 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 pos‐
       sible.
       # 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

       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)