About disk pools for snapshots and snapshot replication
An OpenStorage disk pool represents the disk storage that is exposed to NetBackup through the OpenStorage API. A disk pool can represent one or more volumes. Disk pools inherit their properties from the volumes that comprise the disk pools.
Snapshot and snapshot replication disk pools differ from other NetBackup disk pool types as follows:
Only one storage unit can access a snapshot or a snapshot replication disk pool.
Snapshot and snapshot replication disk pools observe no high or no low water marks.
One disk pool to be used for snapshots can be configured as part of the Storage Server Configuration Wizard. At least one additional disk pool is necessary for snapshot replication. The Disk Pool Configuration Wizard can also be launched independently.
See Creating disk pools for snapshot replication.
The NetBackup administrator creates multiple disk pools to serve specific purposes in a replication configuration. The volumes in a disk pool must have the properties that match their intended purpose.
For example, the following disk pools are necessary to create a snapshot volume and replicate it to target volumes:
A disk pool that contains a volume where the initial snapshot can be created. The volume must have the Snapshot and Primary attributes set.
A disk pool that contains a volume with the Snapshot and the Replication target properties set to serve as the target for a replica snapshot.
The following topic describes the roles that disk pools and storage units can serve in a Replication Director configuration:
See About configuring storage lifecycle policies for snapshots and snapshot replication.