RAID Solution (Score 1)

I ran into the same problem not long ago. Our local ISP needed a backup solution. The old tape drives were not doing their job anymore. But, we built our own RAID cabinet. We bought a 8 disk RAID enclosure with dual redundant power supplie from Siliconrax. The controler is a Mylex External RAID controller. The card is nice, it allows expandablity down the line. The card comes in a full height enclosure (keep it in mind, its big). We used 18.6 gig Seagate drives in the system. Each drive was mounted in a CRU Data Port removable enclosure for hot swap. RAID controller has a LCD front panel making setup a snap. The array was configured with RAID 5. RAID 5 is redundant, and provides fast read access, but write access is slower. All in all, the the array is about 100gig online. It cabinet is connected to a SGI O2. The only thing to watch is the cable length!! We've been doing nightly backups over NFS since the array was turned up. The system is nice. Go SCSI, and go the research on the proper controller. If the money is there, go fiber.