I am backing up my MS SQL 2000 server with Data Protection Server 2007 (DPM). I was getting a lot of errors on the DPM server because I was also doing backups on the actual SQL server to be transferred to tape at night. I figured out that the errors were because I was backing up the transaction logs and it was creating a discontinuity in the transaction log chain. To fix this I have stopped doing the transaction log backup and I am only doing a full back up once a day right before the tape backup runs, again for offsite purposes. My trouble now is that the transaction log is getting huge and creating performance problems. Apparently DPM does not truncate the log file when it does it thing. What is the best thing for me to do to correct this problem while keeping DPM errors to a minimum?