On 12/16/2009 9:41 AM, William Warren wrote: > On 12/16/2009 12:10 AM, Eero Volotinen wrote: > Still going to need 10TB of backups. And i can guarantee you the > chances of having a URE during rebuild are almost certain with this > setup so a backup is going to be crucial. Sounds like a nightmare even > inside a supermicro or similar box. Yah, RAID-6 at a minimum, I wouldn't depend on RAID-5, even with a hot-spare. So to get 10TB, you'd need 13 drives (10 data, 2 parity, 1 hot-spare). And make sure you buy enterprise level SATA disks (the 1TB models are about $150 right now). (You can fit 15 3.5" drives into a SuperMicro 4U 942i 760W case with the 5:3 SATA mobile racks. The 942i is also a very quiet case due to using 120mm fans inside.)