Quantum DXi4700 User Manual page 238

Chapter 9: Configuration
OST Configuration
Enable Select the check box to enable optimized duplication during OST ingest.
Concurrent
Concurrent Optimized Duplication is disabled by default. If enabled, as data is written to the
Optimized
storage server, it is simultaneously replicated to the target DXi. When optimized duplication
Duplication
or Automatic Image Replication subsequently occurs, the operation is more efficient
because a portion of the required data has already been replicated to the target storage
server.
3. Select the check box for each optimized duplication target you want to duplicate the storage server to.
When the storage server is duplicated, its data will be sent to all selected targets.
4. Under Logical Storage Unit, select the type of LSU to add to the new storage server:
Available (Recommended for best performance) Select this option to add an LSU that uses the available
Capacity capacity on the system.
You cannot add an available capacity LSU to a storage server that already contains an LSU.
Also, if you add an available capacity LSU to a storage server, you cannot add additional LSUs
to that same storage server.
Specific Select this option to specify the physical capacity of the LSU, and then enter the following
Capacity information.
LSU Name - Enter the name of the LSU.
l
Physical Capacity - Enter the physical capacity of the LSU (1 to 1048576 GB).
l
5. (Optional) In the Description box, enter a brief description of the LSU.
6. (Optional) Select the Enable Automatic Image Replication check box to automatically replicate
(duplicate) data on the LSU to a remote LSU on another DXi.
Automatic Image Replication (AIR) is disabled by default. If enabled, data on an LSU is automatically
replicated to a remote LSU that resides on a DXi in a different NetBackup domain. The timing of the
duplication, as well as the backup images that are duplicated, are determined by the storage lifecycle
policies (SLPs) configured in NetBackup.
OST AIR requires NetBackup 7.1 or higher. For information about configuring NetBackup for
Automatic Image Replication, see the DXi-Series NetBackup and Backup Exec OST Configuration
Guide (6-67079).
Quantum DXi4700 User's Guide
Note: To configure the target DXi, see
Note: When Concurrent Optimized Duplication is enabled, all data on the storage
server is duplicated, not just the specified images.
Note: After you add an LSU that uses the Available Capacity option, you cannot change
the LSU to use the Specific Capacity option. Instead, you must delete the LSU, then add
a new LSU and choose the Specific Capacity option (see
Note: Quantum recommends setting LSUs to maximum size (1048576 GB) because
spanning them on a backup is not possible.
Adding a Replication Target on page
Deleting an LSU on page
255.
246).
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