About media mount errors

Errors can occur when media is mounted for NetBackup jobs. Depending on the type of error, the request queues or it is canceled.

When the mount request is queued, an operator-pending action is created and appears in the Device Monitor.

A queued mount request leads to one of the following actions:

The mount request is suspended until the condition is resolved.
The operator denies the request.
The media mount timeout is reached.

When a mount request is automatically canceled, NetBackup tries to select other media to use for backups. (Selection applies only in the case of backup requests.)

Many conditions lead to a mount request being automatically canceled instead of queued. When a media mount is canceled, different media is selected so that the backup is not held up.

The following conditions can lead to automatic media reselection:

The requested media is in a DOWN drive.
The requested media is misplaced.
The requested media is write protected.
The requested media is in a drive not accessible to the media server.
The requested media is in an offline ACS LSM (Automated Cartridge System Library Storage Module). (ACS robot type only.)
The requested media has an unreadable barcode. (ACS robot type only.)
The requested media is in an ACS that is not accessible. (ACS robot type only.)
The requested media is determined to be unmountable.