blkpr

Register, reserve, release, preempt, and clear persistent reservations on a block device that supports Persistent Reservations. More information: https://manned.org/blkpr.

• Register (command) a new reservation with a given key on a given device:

blkpr -c|–command register -k|–key reservation_key path/to/device

• Set the type of an existing reservation to exclusive access:

blkpr -c reserve -k|–key reservation_key -t|–type exclusive-access path/to/device

• Preempt the existing reservation with a given key and replace it with a new reservation:

blkpr -c preempt -K|–oldkey old_key -k|–key new_key -t|–type write-exclusive path/to/device

• Release a reservation with a given key and type on a given device:

blkpr -c release -k|–key reservation_key -t|–type reservation_type path/to/device

• Clear all reservations from a given device:

blkpr -c clear -k|–key key path/to/device