It's a managed device - that's the management port, where you ideally have a separate network for management.Also, what's the Ethernet port out the back for? Is it an actual NIC?
Ddrueding said:The Areca kept balking at drives. Sure they weren't on the HCL, but 3Ware never had that issue.
Do you really need the 12 drives to be in RAID or do you already own the motherboard? If not, you could save a bunch by opting for a motherboard that already has 12 or more SATA ports onboard. That's 600$ cheaper.
That would be the notorious WD (or possibly Seagate?) 3Gbps SATA drives that failed to work reliably with enterprise-class controllers?