blkdeactivate(8) - phpMan

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_op-
       tions] [-o vdo_options] [-u] [-v] [device]

DESCRIPTION
       The blkdeactivate utility deactivates block devices. For mounted  block  devices,  it  at-
       tempts to unmount it automatically before trying to deactivate. The utility currently sup-
       ports 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 de-
       vices 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) op-
              tions 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 it-
              self 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.  De-
                     activating  the  Volume  Group  as a whole is quicker than deactivating each
                     Logical Volume separately.

       -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 un-
                     available for any underlying device-mapper multipath device.

       -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 deac-
                     tivation.

       -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 de-
       vice-mapper device fails, retry it. Deactivate the whole Volume Group at  once  when  pro-
       cessing an LVM Logical Volume.   # blkdeactivate -u -d retry -l wholevg

       Deactivate  all  supported block devices found in the system. If the deactivation of a de-
       vice-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 2.03.11(2) (2021-01-08)                BLKDEACTIVATE(8)

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