Error 3258
Severity Level 16
Message Text
The volume on device '%ls' belongs to a different media set.
Explanation
The volume on the named device does not belong to the same media set as the other volumes being processed.
Action
For tape media sets, remove the offending volume and insert the next volume of the media family.
For disks, reissue the command. Name only those backup devices that were part of the same media set.