BLKDEACTIVATE

NAME

blkdeactivate − utility to deactivate block devices

SYNOPSIS

blkdeactivate [options] [device...]

DESCRIPTION

blkdeactivate utility deactivates block devices. If a device is mounted, the utility can unmount it automatically before trying to deactivate. The utility currently supports device-mapper devices, including LVM volumes. LVM volumes are handled directly using the lvm command. Other device-mapper based devices are handled using the dmsetup command.

OPTIONS

−h, −−help

Display the help text.

−u, −−umount

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

−d, −−dmoption dm_options

Comma separated list of device-mapper specific options.

−l, −−lvmoption lvm_options

Comma separated list of LVM specific options.

DM_OPTIONS

LVM_OPTIONS

wholevg

Deactivate the whole LVM Volume Group when processing a Logical Volume. Deactivating Volume Group as a whole takes less time than deactivating each Logical Volume separately.

EXAMPLES

Deactivate all supported block devices found in the system. If a device is mounted, skip its deactivation.

blkdeactivate

Deactivate all supported block devices found in the system. If a device is mounted, unmount it first if possible.

blkdeactivate −u

Deactivate supplied device together with all its holders. If any of the devices processed is mounted, unmount it first if possible.

blkdeactivate −u /dev/vg/lvol0

Deactivate all supported block devices found in the system. Retry deactivation of device-mapper devices in case the deactivation fails. 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. Retry deactivation of device-mapper devices in case the deactivation fails and force removal.

blkdeactivate -d force,retry

SEE ALSO

lsblk(8) umount(8) dmsetup(8) lvm(8)