First page Back Continue Last page Graphics
Cluster locking module
Locks are passed directly to a separate daemon, clvmd, that runs on all the machines in the cluster and responses (currently just success or failure) are passed back to LVM2.
Volume Group locking modes are mapped to Protected Read or Protected Write.
Logical Volume locking modes are mapped as follows:
- LV_ACTIVATE – Concurrent Read
- LV_DEACTIVATE – Null
- LV_EXCLUSIVE – Exclusive
- LV_SUSPEND – Protected Write
- LV_RESUME – Unlock