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blkpr(8)

BLKPR(8) System Administration BLKPR(8)

NAME

blkpr - run persistent reservations command on a device

SYNOPSIS

blkpr [options] device

DESCRIPTION

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.

OPTIONS

-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.

AUTHORS

zhenwei pi <pizhenwei@bytedance.com>

SEE ALSO

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/>

REPORTING BUGS

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

AVAILABILITY

The blkpr command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.

2026-07-08 util-linux 2.39.2