Low water mark storage unit setting
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.
Note:
Low water mark does not apply to cloud storage disk pools. This value is derived from the storage capacity, which cannot be fetched from the cloud provider.
Once the High water mark is reached, space is created on the disk storage unit until the Low water mark is met. The default setting is 80%.
See Capacity managed retention type for SLP operations.
The Low water mark setting cannot be greater than the High water mark setting.
For the disk storage units that reference disk pools, the Low water mark applies to the disk pool.
Note:
For more information, see the following: