Dell NetWorker 19.9 Administration Guide

Auto Media Management for stand-alone devices

The Auto Media Management feature can be enabled for stand-alone devices during manual device configuration, or from the Properties window after configuration.

When Auto Media Management is enabled for a stand-alone device, the following processes occur when a volume becomes full during a backup:

• A notification is sent that indicates that the server or storage node is waiting for a writable volume. Simultaneously, the NetWorker server waits for the full, verified volume to be unmounted.
• The device is monitored and the software waits for another volume to be inserted into the device.
• After a volume is detected, a check is performed to determine whether the volume is labeled. If so:
  • The volume is mounted into the device.
  • The NetWorker server checks to see whether the newly mounted volume is a candidate to receive data:
    1. If yes, the write operation continues.
    2. If no, the NetWorker server continues to wait for a writable volume to continue the backup.
• If the volume is recyclable and is a member of the required pool, it is recycled the next time a writable volume is needed.
• If the volume is unlabeled, it is labeled when the next writable volume is needed for a save. Note that Auto media management does not label disk type devices such as AFTD and Data Domain.
  NOTE:If a partially full volume is unmounted, the NetWorker server automatically ejects the volume after a few seconds. If a stand-alone device is shared between storage nodes, then Auto Media Management should not be enabled for more than one instance of the device. Enabling Auto Media Management for more than one instance of the stand-alone device will tie up the device indefinitely. No data is sent to the device and no pending message is sent.