Currently we are backing up about 700gb of data on the weekends and our backups are lasting almost 36 hours. We were previously running and SDLT unit in conjunction with an LTO3 which was our main work horse. In an attempt to speed things up, we purchased a 2 drive LTO 3 unit (with only one of those drives currently in production). We appear to be getting very similar performance on the new unit, which makes me believe we have a bottleneck somewhere else. What doesnt make sense to me is our servers are all running through the same switch, but some of the more souped up servers back up slower than the older servers. SQL backs up super fast. Any suggestions as to what I can look into next.