I am having problems setting up the Brightstor v11 backup software so it works correctly for our HP Autoloader (HPC9264CB-VS80). The autoloader holds 8 tapes of which one is a cleaning tape. My scheme of backup has two groups with 5 tapes in one and 2 tapes in the other. The five tapes group is for 4 of our servers and the other two are devoted to our Exchange Backup. We are backing up approx 70-80 Gb per day for the 5 tape group. We are using hp dlt IV data cartridges (C5141F). I have each of my jobs running so that it first appends the data (under options for First Backup Media) and then overwrite same media name or blank media first, then media (Options for Additional Backup Media). The problem that I am having is this: when the tapes get filled up they will not begin to overwrite the old data. All the jobs fail after the tapes get filled (initially after very first backup). What I would like to happen is have the data to be written to the group and then when that group of tapes is full, begin writing over the old data first in a circular fashion. Can someone shed some light on this?