ext3 partition problems w/Apple Xserve RAID

[Jon Forrest]

Randy Martin wrote:
> I’m running Red Hat AS 4 on a Dell PowerEdge 1950.  It connects to an 
> Apple Xserve RAID via a Qlogic QLE2460 card.  I am able to create a 4TB 
> ext3 partition with no problems and use it fine.  When the system power 
> drops or it’s rebooted, the file system can’t  be mounted again.  It 
> looks like the partition table is getting corrupted.  Here is some of 
> the doc I gathered:

> Disk geometry for /dev/sdb: 0.000-4292376.000 megabytes
> 
> Disk label type: msdos

Bingo. That's your problem. You have to use a gpt disk label
for partitions this large. I had the identical problem
and I was able to fix it without loosing a single bit.
I described it in a posting to this group on 3/14/2007.
(I'll send it to you directly).

Cordially,
-- 
Jon Forrest
Unix Computing Support
College of Chemistry
173 Tan Hall
University of California Berkeley
Berkeley, CA
94720-1460
510-643-1032
jlforrest at berkeley.edu