> Expert > Data Management > Additional Copies of Backup Data

Performing an Auxiliary Copy Operation

You can perform an auxiliary copy operation to replicate the data from the primary copy to a secondary copy. You can perform an auxiliary copy operation between any two MediaAgents, regardless of their operating systems.

Note

  • If a LAN-free MediaAgent is available to perform auxiliary copy operations, the software uses that MediaAgent for both read and write operations of the backup data. If a LAN-free MediaAgent is not available, the software uses any MediaAgent that can read the source data.

  • By default, the MediaAgent is not required to be in the data path of the source storage policy copy. To require that the MediaAgent be in the data path of the source storage policy copy, enable the Prefer copy data paths for picking read MediaAgent setting.

  • The MediaAgent that is selected (either by the user or by the software) for read operations must be able to communicate with the MediaAgents of the destination copy or copies that are selected to run the auxiliary copy operation.

  • Auxiliary copy for cloud target storage now supports Storage Accelerator. For information on Storage Accelerator support, see Accelerating Auxiliary Copies.

  • The CommServe and the MediaAgent resources are not optimally utilized if the MediaAgents are not upgraded to the latest Commvault version.

  • To enhance the auxiliary copy performance by copying only those backups that are successfully verified in the data verification job, ensure that the Skip jobs that failed data verification check box is selected. For a detailed description, see Auxiliary Copy Job Options.

Before You Begin

  • Verify that the storage policy on which the auxiliary copy operation is planned is associated with a subclient and client backups have been run.

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

  • You can view the list of backup jobs that are associated with a storage policy copy.

    For more information, see Viewing Jobs Associated with a Storage Policy Copy.

Procedure

  1. From the CommCell Browser, expand Policies > Storage Policies.

  2. Right-click the appropriate storage policy, point to All Tasks > Run Auxiliary Copy.

  3. By default, All Copies option is selected to copy data from the source copy to all secondary copies.

    Select the Select A Copy, and then from the list select a secondary copy.

  4. On the Job initiation tab, define whether the auxiliary copy job runs immediately or if it will be scheduled.

    For more information, see Job Initiation.

  5. Optional: Set advanced auxiliary copy job options, click Advanced.

    For more information, see Advanced Auxiliary Copy Job Options.

  6. Click OK.

    Note: If an Install Updates job or a CommServe service restart is performed when an auxiliary copy job is running, then after the completion of the Install Updates job or service restart, the auxiliary copy job automatically picks up the new backup jobs available on the source copy.

Result

After your auxiliary copy operation is complete, you can view the auxiliary copy job history. For more information, see Viewing Auxiliary Copy Job History.

For information on Storage Accelerator support, see Accelerating Auxiliary Copies.

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