About disk pools for NetBackup deduplication
NetBackup deduplication disk pools represent the storage for deduplicated backup data. NetBackup servers or NetBackup clients deduplicate the backup data that is stored in a deduplication disk pool.
Two types of deduplication pools exist, as follows:
A NetBackup represents the disk storage that is attached to a NetBackup media server. NetBackup deduplicates the data and hosts the storage.
NetBackup requires exclusive ownership of the disk resources that comprise the deduplication pool. If you share those resources with other users, NetBackup cannot manage deduplication pool capacity or storage lifecycle policies correctly.
A NetBackup represents a PureDisk storage pool on a NetBackup 5000 series appliance. NetBackup deduplicates the data, and PureDisk hosts the storage.
Note:
NetBackup supports storage on NetBackup 5000 series appliances only.
How many deduplication pools you configure depends on your storage requirements. It also depends on whether or not you use optimized duplication or replication, as described in the following table:
Table: Deduplication pools for duplication or replication
| Type | Requirements |
|---|---|
|
Optimized duplication within the same NetBackup domain |
Optimized duplication in the same domain requires the following deduplication pools:
See About MSDP optimized duplication within the same domain. |
|
Auto Image Replication to a different NetBackup domain |
Auto Image Replication deduplication pools can be either replication source or replication target. The replication properties denote the purpose of the deduplication pool. The deduplication pools inherit the replication properties from their volumes. See About the replication topology for Auto Image Replication. Auto Image Replication requires the following deduplication pools:
|