Disk drives for Proliant 6000 tower server

So I have this 4 xeon tower server and want to repurpose it as a media server. Sadly its disk space is straight from the nineties:- 8 scsi disks – 2×9.1gb and 6x 18.2gb. Does anyone know where (if?) I can source some serious sized drives, theres room for lots more

or at least help me out with the spec. I need to look for