Hi, Does anyone know how I can find out if an ibm serveraid 8k sas storage controller (zero channel RAID) is a real hardware RAID controller and supported in the standard CentOs kernel or is it a fake raid controller. I am trying to decide if I should get the serveraid controller or go get a 3ware controller. Regards, -- Tom Diehl tdiehl at rogueind.com Spamtrap address mtd123 at rogueind.com
On 9/13/07, Tom Diehl <tdiehl at rogueind.com> wrote:> > Does anyone know how I can find out if an ibm serveraid 8k sas storage > controller (zero channel RAID) is a real hardware RAID controller and > supported in the standard CentOs kernel or is it a fake raid controller. > I am trying to decide if I should get the serveraid controller or go get > a 3ware controller.Tom, The ServeRAID 8k s a real hardware raid controller, is has 256 MB of cache I think and a battery backup. So in this case there is no need for a 3ware controller. On the IBM website you can also find a commandline tool (called arcconf) that allows you monitor and configure the controller inside Linux. Regards, Tim -- Tim Verhoeven - dj at rootshell.be - 0479 / 88 11 83 Hoping the problem magically goes away by ignoring it is the "microsoft approach to programming" and should never be allowed. (Linus Torvalds)
Hi Tom, Tom Diehl wrote:> Does anyone know how I can find out if an ibm serveraid 8k sas storage > controller (zero channel RAID) is a real hardware RAID controller and > supported in the standard CentOs kernel or is it a fake raid controller. > I am trying to decide if I should get the serveraid controller or go get > a 3ware controller.although not the freshest, this site always turned out to be helpful getting infos for SATA "raid" cards (the "fake check"): http://linuxmafia.com/faq/Hardware/sata.html In the according document, http://linuxmafia.com/faq/Hardware/sas.html nothing is stated about a fake SAS card (but indeed about linux compatibility). Maybe in this league, cheating customers is not so common. Does anybody know a SAS/SCSI raid card which does hidden software raid instead of hardware? Regards, Sebastian