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Re: ext3 partition problems w/Apple Xserve RAID

On Jul 30, 2007  09:38 +0200, Ionel GARDAIS wrote:
> I'm running the same kind of configuration (RHEL ES 4 on a PowerEdge 
> 2950 with a QLE2460 connected to a SanBox 5200 with 2 XServe RAID 10.5TB).
> The four 4.5TB slices are directly formated in ext3, no partitions were 
> created.
> Should I expect to get some data corruption on power failure ?

No, that's only if you have a DOS partition.  We have lots of > 4TB
ext3 filesystems w/o problem.

> Jon Forrest wrote:
> >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,
> -- 
> System-Network Engineer

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Cheers, Andreas
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

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