Library Operations - How To

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Move a Library to Another MediaAgent Without Losing Data

Change the MediaAgent (Host) Associated with a Library

Reuse Media with Failed Content Verification

Move a Library to Another MediaAgent Without Data Loss

In some situations you may have the need to move a library from one MediaAgent to another due to re-configuration or other requirements.

The following procedure provides step-by-step instructions on how to perform this operation.

  1. Detach the library and attach it to the new MediaAgent and make sure that the hardware is visible to the operating system. See Driver Configurations for more information.
  2. Open the CommCell Console and change the name of the MediaAgent associated with the library. See Change the MediaAgent (Host) Associated with a Library for more information.
  3. If necessary run a quick backup to verify that the devices are functioning correctly.

Change the MediaAgent (Host) Associated with a Library

The following procedure outlines the steps involved in changing the MediaAgent associated with a library. Use this procedure when you attach the library to a different MediaAgent

To change the MediaAgent associated with a library
1. Detach the library from the old MediaAgent computer and attach it to the new MediaAgent computer.
2. Check and verify that the library and drives are visible to the operating system in the new MediaAgent computer.

For a more detailed explanation on verifying the driver configurations, see Driver Configurations.
3. Display the Library and Drive Configuration window.

Select only the old and new MediaAgents in the Select MediaAgents dialog box.
4. Click OK in the Information prompt.

This prompt is displayed as the library is not yet configured in the new MediaAgent.

The system displays the library configured under the old MediaAgent.
5. Right-Click the library controller and then choose Change Host.
6. Select the name of the new MediaAgent to which the library is currently attached.
7. Click Yes in the confirm prompt.
8. Click OK in the Information prompt.
9. Right-click the DrivePool and then choose Change Host.
10. Select the name of the new MediaAgent to which the library is currently attached.
11. Click Yes in the confirm prompt.
12. Click OK in the Information prompt.
  The system displays the library configured under the new MediaAgent.
13. From the Start Menu, click Select MediaAgents.

In the Select MediaAgents dialog box, select the name of the MediaAgent to which the library is currently attached.
14. Detect the devices as described in Detect Devices.

Once the detection process is complete, the devices should be displayed with configured, detected status.

The Library tab provides  the physical view of the devices (library and drives).

 
  The Data Paths tab provides a logical view of the data path used to access the devices - library, master drive pool, drive pool, drive.

 

Reuse Media with Failed Content Verification

Required Capability: See Capabilities and Permitted Actions

Use the following procedure to overwrite media in situations where the MediaAgent fails to read a media, e.g., incompatible data formats, etc.

To reuse media with failed content verification:

  1. From the CommCell Browser, right-click the library for which you wish to reuse media with failed content verification, and then click Properties.
  2. Click the Media tab.
  3. From the Overwrite Media region, click When Content Verification Failed.
  4. Click OK to save the changes.