38Provisioning the storage
About deduplication storage capacity
NetBackup requires exclusive use of the disk resources. If the storage is used for purposes other than backups, NetBackup cannot manage disk pool capacity or manage storage lifecycle policies correctly. Therefore, NetBackup must be the only entity that uses the storage.
See “About the deduplication storage paths” on page 38.
About deduplication storage capacity
Storage capacity for a deduplication node (deduplication storage server and storage) is 32TB.
The deduplication database consumes approximately 10 percent of the storage capacity. Therefore, approximately 90 percent of the storage capacity is usable space for unique backup data. The actual percentages vary depending on the data.
For performance optimization, Symantec recommends that you use a separate disk, volume, partition, or spindle for the catalog database.
If your storage requirements exceed the capacity of a media server deduplication node, do one of the following:
■Use more than one media server deduplication node.
■Use a PureDisk deduplication pool as the deduplication destination. A PureDisk deduplication pool provides larger storage capacity. It also provides global deduplication.
About the deduplication storage paths
When you configure the deduplication storage server, you must enter the path name to the storage. The storage path is the directory in which NetBackup stores the raw backup data.
Because the storage requires a directory path, do not use only a root node (/) or drive letter (G:\) as the storage path.
You also can specify a different location for the deduplication database. The database path is the directory in which NetBackup stores and maintains the structure of the stored deduplicated data.
For performance optimization, Symantec recommends that you use a separate disk, volume, partition, or spindle for the deduplication database.
If the directory or directories do not exist, NetBackup creates them and populates them with the necessary subdirectory structure. If the directory or directories exist, NetBackup populates them with the necessary subdirectory structure.
