ext3fs SAS 5/i raid

[Patrick_Boyd at Dell.com]

Do you have the SAS 5/iR or the SAS 5/i? This is an important
distinction since the SAS 5/i does not have RAID while the SAS 5/iR can
do simple RAID 0 and RAID 1 configurations.

-----Original Message-----
From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Steven Stringham
Sent: Tuesday, November 28, 2006 9:06 AM
To: linux-poweredge-Lists
Subject: ext3fs SAS 5/i raid

I recently got an 840 tower with the SAS 5/i raid controller, and hot
pluggable SATA drives. I configured the two drives to be mirrored in the
controller. I then installed Fedora 6 x64 patched.

I then proceeded to test the raid controller by yanking out a drive. I
was expecting the system to maybe say something occurred. But, the ext3
file system complained about a journaling I/O error, and then remounted
the file system in Read Only mode.

I called tech support, and they said that this was normal for all RAID
controllers and ext3.

So, after all this my question is: If I am using hardware RAID, should
the linux kernel remount the file system to readonly when a mirrored
drive fails? This seems very counterintuitive to me. Should the system
not continue to function, but with some notification of the hardware
failure?

Thanks
Steven Stringham

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