lvmpersist

linux

Manage persistent reservations (PR) on block devices or all PVs in a volume group.

Examples (7)

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