blkpr
Manage persistent reservations on block devices
TLDR
Register reservation
$ blkpr -c register -k reservation_key /dev/sda
Reserve exclusive access$ blkpr -c reserve -k key -t exclusive-access /dev/sda
Preempt existing reservation$ blkpr -c preempt -K old_key -k new_key -t write-exclusive /dev/sda
Release reservation$ blkpr -c release -k key -t type /dev/sda
Clear all reservations$ blkpr -c clear -k key /dev/sda
SYNOPSIS
blkpr [OPTIONS] device
DESCRIPTION
blkpr manages persistent reservations on block devices that support SCSI Persistent Reservations. It allows registering, reserving, releasing, preempting, and clearing reservations for shared storage access control.
PARAMETERS
-c, --command cmd
Command: register, reserve, release, preempt, clear-k, --key key
Reservation key-K, --oldkey key
Old key for preempt operations-t, --type type
Reservation type (exclusive-access, write-exclusive, etc.)
CAVEATS
Requires devices that support SCSI Persistent Reservations. Used in clustered storage environments to coordinate access. Keys are typically 64-bit values.
HISTORY
blkpr is part of util-linux, providing block device persistent reservation management.
SEE ALSO
sg_persist(8), blockdev(8)