BE 12.5 - Exchange disk to tape issue
I am having an issue with backups pausing for a lengthly time. Specifically my exchange backups seem to pause at a certain spot when writing from the b2d file to tape. Currently I am watching my duplicate process chug along at about 1,300 mb/min. I back up 3 storage groups for exchange. Every day I can watch the duplicate process (Duplicate to Tape) pause at approximately 32 gigs and 77 gigs. What's interesting is storage group 1 is about 30 gigs, and storage group 2 is about 44 gigs. This coincidentally corresponds to where the tapes stop.
The big issue with this is that the exchange duplicate job goes extremely fast without these pauses. For example, the rate between these pauses as mentioned before seems to average about 1300 mb/min. With these pauses the duplicate takes about 6 hours while the backup to disk process takes only 2 hours or so. Any ideas what's the deal with the pauses? Do I just have to deal with it or could this be a symptom of something being wrong with the backup job causing the duplicate process to slow down?