A disk pool represents disk volumes on the underlying disk storage. NetBackup aggregates the disk volumes into pools of storage you can use for backups.

A disk pool is the storage destination of a NetBackup storage unit.

For AdvancedDisk, NetBackup assumes exclusive ownership of the disk resources that comprise the disk pool. If you share those resources with other users, NetBackup cannot manage disk pool capacity or storage lifecycle policies correctly.

When NetBackup sends backup data to a disk pool, NetBackup selects disk volumes based on available capacity and predicted size of the backup. NetBackup tries to write backup data to a single volume. If necessary, backup images span disk volumes in a disk pool. Backup images do not span across multiple disk pools.