blkpr - Man Page

• 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

tldr.sh

blkpr [options] device

blkpr is used to run persistent reservations command on device that supports Persistent Reservations feature.

The device argument is the pathname of the block device.

-c,  --command command

The command of persistent reservations, supported commands are register, reserve, release, preempt, preempt-abort, and clear.

-k,  --key key

The key the command should operate on.

-K,  --oldkey oldkey

The old key the command should operate on.

-f,  --flag flag

Supported flag is ignore-key.

-t,  --type type

Supported types are write-exclusive, exclusive-access, write-exclusive-reg-only, exclusive-access-reg-only, write-exclusive-all-regs, and exclusive-access-all-regs.

-V,  --version

Display version information and exit.

-h,  --help

Display help text and exit.

zhenwei pi

sg_persist(8)

Linux documentation at: https://docs.kernel.org/block/pr.html iSCSI specification at: https://datatracker.ietf.org/doc/html/rfc3720 NVMe-oF specification at: https://nvmexpress.org/nvme-over-fabrics-part-two/

For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.

The blkpr command is part of the util-linux package which can be downloaded from Linux Kernel Archive.