One of our data sources has grown to the size that it is larger than will fit on a single LTO-5 tape. DPM is now unable to complete the backup. After prompting for a new tape which is then provided, it writes as much as will fit (~1.65TB) to the tape, then requests another tape. When the "run tape backup job again" is selected (due to waiting for tape timing out), it appears to write from the start and the job never completes.
When you select view tape contents of the partial tape, the warning message "DPM needs to recatalog the selected tape before it can display its contents. Do you want to recatalog the tape now?" comes up. Selecting Yes does absolutely nothing. Even after just doing an inventory of the library, it refuses to display the contents of the tape.
Is there any way to get DPM to back up a single data source bigger than a single tape? If we upgrade to 2016 is this issue resolved?