On Sat, 2005-04-16 at 01:11 +0800, Franki wrote: > Hi everyone, > > I'm looking into setting up a SATA hardware raid, probably 5 to use with > CentOS 4. I chose hardware raid over software mostly because I like the > fact that the raid is transparent to the OS. > > Does anyone know of any SATA controllers that are well tested for this > sort of usage? > > From what I can tell from googling, this is more or less where RHEL stands: > Red Hat Enterprise Linux version 3 and the current version of Fedora > support the following SATA chipsets: > > Intel's ICH5 SATA chipset > Silicon Image's SATA chipset > > Does CentOS4 add anything to this as it is based on 2.6 kernel? > > My question upon reading what I found on Google, is if it is true > hardware raid, shouldn't the OS not be able to tell it's raid at all? > I'm assuming that the chipsets listed above are driver based hardware > raid? what I am after is a raid array based on true hardware raid such > that the OS see's just one drive, and the hardware firmware handles any > mirror/striping. I have used the 6 port LSI Megaraid SATA controller for an application using an RHEL rebuild (Rocks) with a 2.4 kernel. It simply uses the same modules as the SCSI flavor (e.g some of the Dell PERC 4 line). It has worked like a champ (so far), and it wasn't too outrageous priced. -- Sean O'Connell Office of Engineering Computing oconnell at soe.ucsd.edu Jacobs School of Engineering, UCSD 858.534.9716 (49716)