blkpr - Man Page

run persistent reservations command on a device


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

See Also


Linux documentation at: iSCSI specification at: NVMe-oF specification at:

Reporting Bugs

For bug reports, use the issue tracker at


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


2023-06-14 util-linux 2.39.2 System Administration