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 chipsetDoes 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.