Dell PowerVault DL2200 CommVault - Manual (Page 9)

Dell PowerVault DL2000 Remote Office Backup Strategy
Page 7
FIGURE 3: SDDR REPLICATION PAIR
The state of the replication pair is initially Stopped. When the media agent initiates the DDR process, the
state changes to Replicating, and then returns to Stopped once the two mount paths are synched.
Storage Policy
Create a new Storage Policy and a Storage Policy Copy, and point them to the Replicated Disk Library.
Enable Single Instancing on the Storage Policy Copy.
Media Management Configuration
DDR replication is controlled by the media agent service. On a periodic basis, the media agent service
initiates the DDR process, which determines changed and deleted files on the primary mount path and
replicates these changes to the secondary mount path. The frequency of these checks can be configured
from the
Media Management Configuration settings, which are accessible from the Control Panel. The
parameter Interval (Minutes) between magnetic space updates (default 30 minutes) controls the
frequency of DDR. For directions on changing the default frequency, refer to the CommVault
documentation.