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cheatsheet-tldr/tldr/linux/blkpr
2025-03-16 00:20:08 +00:00

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---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# 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|--command]}} 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|--command]}} 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|--command]}} release {{[-k|--key]}} {{reservation_key}} {{[-t|--type]}} {{reservation_type}} {{path/to/device}}`
- Clear all reservations from a given device:
`blkpr {{[-c|--command]}} clear {{[-k|--key]}} {{key}} {{path/to/device}}`