On Thu, Jun 03, 2010 at 09:36:46PM +0200, Ulrich Drolshagen
wrote:> we are about to aquire a new Primergy TX150. I can not find any information
on
> support of the Intel ICHx sata raid controller in the Hardware Notes of 8-
> Stable. Does anybody know?
All revisions of the ICHxx series are supported (ICH3 to ICH10 I can
confirm).
If you plan on using the RAID functionality of the chipset (otherwise
known as "MatrixRAID" or "Matrix Storage Technology"),
don't bother[1].
Instead, enable AHCI on the controller (usually in the system BIOS) and
use one of FreeBSD (software/OS-level) RAID/RAID-like implementations
such as gmirror, gvinum, or ZFS.
I'd also recommend using ahci.ko instead of ataahci.ko for AHCI support.
achi.ko provides a AHCI/SATA-to-CAM translation layer (which means you
gain benefits like NCQ; disks show up as adaX), while ataahci.ko (the
default) does not use CAM (and does not support NCQ; disks show up as
adX).
You can use ahci.ko by placing 'ahci_load="yes"' in
/boot/loader.conf,
or when booting a FreeBSD installation medium, dropping to the loader
prompt and typing "load ahci" then "boot".
[1]: http://en.wikipedia.org/wiki/Intel_Matrix_RAID
--
| Jeremy Chadwick jdc@parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |