Clarification needed for media/job setting (Append) and large jobs
I've inherited our backup solution (BE 2010 with Dell Tape drive+autoloader) so I'm not fully trained/versed in the configuration of the system. I know how to create/modify jobs, swap tapes, etc but I've been encountering an odd issue lately. When we have a large job run that requires more than one tape, I've noticed that the job status will change to Queued and the message that appears is "Please insert overwritable media into the robotic library using the import command." If I check the media status I can see available media with Appendable Until - Infinite - Allow Append and these tapes have available space. My questions are as follows:
1. Why doesn't BE insert the next tape if it's available to be written to?
2. Are backups not able to span multiple tapes?
3. If the available tapes have some data written but are still able to be appended, are these excluded from the above scenario?
4. Where is the Import command that the message is asking me to use?
I've attached some photos below that may help illustrate my issue. Hoping someone can shed some light on this! From what I've been able to search, I don't really follow the answers that are given. Some of the nomeclature used is beyond me.