On 03/10/11 8:35 AM, Kai Schaetzl wrote: > RedShift wrote on Thu, 10 Mar 2011 17:05:02 +0100: > >> That controller doesn't really support RAID, what you're getting is >> commonly called FakeRAID > If you are referring to the 1068E, that is completely wrong. They do have basic hardware raid, with an embedded control processor, but they don't have any battery back write-back cache, which negates any real advantages of hardware raid. I always configure those as simple SAS controllers and use the OS native software raid (mdraid mirroring in the case of Linux). I also almost never use any raid level above raid1 or 10 (mirror or stripe/mirror).