Replica Library

For disks that are replicated to another disk in real-time using hardware replication tools, the mount paths from both the primary and replicated disks can be configured as a disk library. In such a configuration, the data written by the primary MediaAgent will have read-write access while the MediaAgent on the replica will have read-only access. Note that the primary and replica mount paths can be configured on any MediaAgent type (Windows, Solaris, Linux, and so on) or with any network or cluster file systems (CIFS,  NTFS, and so on).

For example: Disk library 1 is configured with MediaAgent 1 wherein MediaAgent 1 has read and write access to the mount path. After running a backup, the data is replicated using either hardware replication or any third-party software to the destination location. You can configure MediaAgent 2 with read only access to the replica path. You can run read only operations on the replicated data thereby limiting the load on the processing capabilities of the MediaAgent 1. For example you can run an auxiliary copy operations to a tape library.

You can setup the replica library by configuring the following the process flow in the order listed.

Alternatively, you can use the library and drive configuration tool to configure a disk library on replicated disks as described in Configuring Disk Library on Replicated Disks by Using the Library and Drive Configuration Tool.

Configuring Disk Libraries on Replicated Disks

  1. Create a disk library on the source MediaAgent as described in Creating a Disk Library.
  2. Backup the data to the disk.

    For more information on how to run backups, see the documentation for the specific agent.

  3. Replicate the backed up data from the source location using either hardware replication or any third-party software to the destination location.
  4. Configure the destination mount path from where you can run the read operations.

    For more information, see Configuring to Read the Data from the Replica Library.

  5. To ensure that data can be read from the replicated disk through the shared MediaAgent you can choose from either of the following options:
    • Restore data and select the destination MediaAgent on the Advanced Options tab of the Restore Options dialog box.

      For more information, see Browse and Restore Using MediaAgent.

    • Run data verification by:
      1. Selecting some jobs for verification as described in Pick a Job for Data Verification.
      2. Running a data verification job and ensuring that the destination MediaAgent is selected from the Select Source MediaAgent list on the Data Verification dialog box.

        For more information, see Manage Data Verification Operation.