megaraid_sas module detection order [FIXED]
Dominique.GARNIER at arval.fr
Dominique.GARNIER at arval.fr
Fri Feb 2 09:11:54 CST 2007
Sorry for the reply on myself. In fact everything seems ok for Grub. This doesn't affect it on anyway as we
can see. So using labels should be enough to make everything work as expected.
Still if someone know if we have an option for changing detection order of PERC Cards i'm interested to know.
From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Dominique.GARNIER at arval.fr
Sent: vendredi 2 février 2007 14:59
To: linux-poweredge at dell.com
Subject: megaraid_sas module detection order
We have have several poweredge servers (mostly 6850) with a PERC 5/E
and a PERC 5/I devices. The 5/E is connected to an MD1000 storage device, the 5/I is
handling the internal drives. We want to install our Redhat Enteprise 4 on the internal drives.
The megaraid_sas module is used to detect the two PERC and there is no way (so far) for me
to make it detect the PERC 5/I first (something to do about its place on the bus i guess).
As you would expect i have the following devices detected:
sda, sdb, sdc, sdd, sde on the PERC 5/E
sdf on the PERC 5/I
I'm not too fond of installing the system on the sdf device but i know most of the problems can
be avoided by using labels on partitions if we have to.
My main concern is about grub.conf. The root directive can't take a label name... so i don't
expect my system to boot again if i add another logical drive on the MD1000
Am i wrong? Is there any way to make the megaraid_device detect the 5/I before the 5/E?
(module options? Server Bios changes?...)
We saw some solutions saying to disable the BIOS on the 5/E device. In this situation, would
grub boot the system correctly whenever we add or remove logical disk on the MD1000?
We also have two 2950 with the same kind of PERC devices and the internal one is detected
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