BLKDEACTIVATE

Section: (8)
Updated: LVM TOOLS 2.03.22(2) (202-0-02)
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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 devic-mapper devices (DM), including LVM volumes and software RAID MD devices. LVM volumes are handled directly using the lvm(8) command, the rest of devic-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 devic-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

Comm-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

Comm-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

Comm-separated list of devic-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 devic-mapper multipath device.

-o|--vdooptions vdo_options

Comm-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 devic-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 devic-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)

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Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

EXAMPLES

SEE ALSO