I am trying to develop a sound back-up strategy for the network I manage and was wondering if I could get some opinions. We are a 75 user network that operates 24 hours a day everyday but Sunday. I have a Dell 22 slot autoloader using 200/400GB LTO tapes. I am currently taking a full backup Monday through Saturday which contains approx 135GB of data. I have created a media pool in back-up exec for this job, pooling together 18 tapes. I then take another full back-up on Sunday when the plant is closed and then take that tape offsite. The Sunday tape is the only one that leaves the building.
Does anyone have any opinions on how I can improve this strategy? We use Back-Up Exec 9 with all of the agents, SQL, Exchange, etc. The back-up takes 2.5 hours with another 2 hours to verify.