I am choosing the Super Server 5015B-URB model. My only question is about the Hardware RAID, it seems that I cannot configure RAID 5 to support a Unix or Linux System. Why I am saying this is because, in the specification, the On-Board Devices RAID 0, 1, 5, 10 (Windows Only) RAID 0, 1, and 10 support(Linux).
The server 5015B-URB pre-build for optional raid controller AOC-USASx-xxx series to support hardware raid. The spec mention support raid by on-board Intel south bridge SATA controller which had two firmware code base support. Under Intel Codebase firmware support Raid level 0, 1, 5 and 10 for Windows OS because Intel does not write any driver support for open source OS. Under Adaptec Codebase firmware support Raid level 0, 1 and 10 for Linux Open Source OS.