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lvmpersist — Manage persistent reservations (PR) on block devices or all PVs in a volume group. More information:

Submitted by: @import:tldr-pages··
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commanddeviceslvmpersistclimanagepersistentblockreservations
linux

Problem

How to use the lvmpersist command: Manage persistent reservations (PR) on block devices or all PVs in a volume group. More information: <https://manned.org/lvmpersist>.

Solution

lvmpersist — Manage persistent reservations (PR) on block devices or all PVs in a volume group. More information: <https://manned.org/lvmpersist>.

Start PR on all PVs in a VG with a local key (exclusive access by default):
lvmpersist start --ourkey {{0x1234abcd}} --vg {{vg_name}}


Start PR for a shared VG (allow multiple hosts):
lvmpersist start --ourkey {{0x1234abcd}} --access {{sh}} --vg {{vg_name}}


Stop PR on a VG and unregister the local key:
lvmpersist stop --ourkey {{0x1234abcd}} --vg {{vg_name}}


Take over a local VG by preempting another host while starting PR:
lvmpersist start --ourkey {{0xmy_key}} --removekey {{0xother_key}} --vg {{vg_name}}


Remove another host's key from a shared VG:
lvmpersist remove --ourkey {{0xmy_key}} --removekey {{0xother_key}} --vg {{vg_name}}


Show registered keys and reservations for a VG:
lvmpersist read --vg {{vg_name}}


Operate on specific devices instead of a VG:
lvmpersist start --ourkey {{0x1234abcd}} --device {{/dev/sdX}} --device {{/dev/mapper/mpathY}}

Code Snippets

Start PR on all PVs in a VG with a local key (exclusive access by default)

lvmpersist start --ourkey {{0x1234abcd}} --vg {{vg_name}}

Start PR for a shared VG (allow multiple hosts)

lvmpersist start --ourkey {{0x1234abcd}} --access {{sh}} --vg {{vg_name}}

Stop PR on a VG and unregister the local key

lvmpersist stop --ourkey {{0x1234abcd}} --vg {{vg_name}}

Take over a local VG by preempting another host while starting PR

lvmpersist start --ourkey {{0xmy_key}} --removekey {{0xother_key}} --vg {{vg_name}}

Remove another host's key from a shared VG

lvmpersist remove --ourkey {{0xmy_key}} --removekey {{0xother_key}} --vg {{vg_name}}

Context

tldr-pages: linux/lvmpersist

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