PE2600 : megaraid PERC4/Di, PERC 3/DC and latest RHAS kernel (e.2 7)
knuffie at xs4all.nl
Wed Oct 15 11:06:00 CDT 2003
At 16:21 15-10-2003 +0200, Eddy.COLLART at cec.eu.int wrote:
>Hi Paul, Matt and all,
>Now, I upgraded the kernel to the 2.4.9-e27 and when I use that kernel, it
>gets stuck with SCSI errors whatever the way I do :
>- upgrade using a RedHat binary RPM
>- upgrade using a source RedHat RPM
>- upgrade using a source RedHat RPM, replace the megaraid and install the
>megaraid2 drivers from LSI logic in the source tree then activate module
>support and recompile. (after changing highmem_io like others had to some
Check cabling?! I had no big problems with the megaraid 1.18f-h releases
with the Perc4 so far. I did get the box to fall over with megaraid 2.00.3
using a bonnie with write caching off, I havn't tried 2.00.9 yet since the
machine is now in production.
I am not using the enterprise kernel on this box since it tends to get
stuck trying to access the LTO tape drive. We are using the 2.4.20-20.7
kernel from the Red Hat 7.3 errata tree.
So far it's working marvels.
Make sure you tune the read-ahead settings in this kernels so you actually
get any usable speed out of the disk system. They were lowered in 2.4.20.
It might just be your lucky day, if you only knew.
More information about the Linux-PowerEdge