Low water mark setting

Once the High Water Mark is reached, space is created on the disk storage unit until the Low Water Mark is met. Default: 80%.

The Low water mark setting has no effect unless backups are written through a storage lifecycle policy, using the capacity managed retention type. NetBackup copies expired images to a final destination storage unit to create space.

See Staged capacity managed retention type for storage destinations.

The Low water mark setting cannot be greater than the High water mark setting.

Note:

Basic disk staging storage units may already be configured on a media server of a previous release. Upon upgrade, the disk storage units are set with the Low water mark at 100%. To make the best use of upgraded storage units, adjust the level.

For the disk storage units that reference disk pools, the low water mark applies to the disk pool.