Hi all. I've been elected backup guy for our company (along with system admin, mac support, exchange dude etc etc) I've dedicated a server for arcserve. I have version 11.1 the Os is windows 2003. i have a seagate 1600 autoloader tape library LTO1. The problem is i'm so busy I've only had time to set up the tape backups quick and dirty. Full backups every night of our sql databases with the sql agent. Everything works fine until a tape fills up and i insert a new one to replace it. I format the new tape and name it the same as the tape I just pulled. At that point the backup fails saying media cannot be found. I reinventory and even re setup the device and have it auto detect the tapes. Any ideas what could be going on. Also one last thing. If someone would not mind taking the time walking me through the best way to do the backups, that would be greatly appreciated. I know full backups every night may not be the best way. i want to do a grandfather father son, but don't understand media pools or if i should backup all of the databases to that GFS set (now i'm backing them up to different tapes) anyway... help. thanks.