Re: large filesystem corruptions

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On 13/03/10 15:19, Kapetanakis Giannis wrote:

I will try Fedora 12/64bit on Monday when I have physical access.

Right now all tests have failed.
OS in Centos 5.4 x86 PAE so I opened a ticket both in Centos and Redhat
bugzilla.
I don't have any contract with redhat but I hope they will give a try on
this.

https://bugzilla.redhat.com/show_bug.cgi?id=573185
http://bugs.centos.org/view.php?id=4239

My feelings are that it has to do with the software raid layer and not
the filesystem (ext4, xfs, gfs all died).
The filesystem seems to not get the appropriate physical/logical
quandaries from the raid layer.

Unless the x86 kernel is not capable of addressing
large filesystems as it is documented (16TB as you said).

I thought I should report here as well.

I've installed Centos 5.4 x64 and all going well so far.
No corruptions at all.

My setup is as before

sdb (hard raid5)
 |
 |------> md0 (soft raid0)----> LVM ----> ext4
 |
sdc (hard raid5)

The only strange thing I've noticed is that pvcreate
is messing with the gpt label on md0. Don't know of that
is normal.

https://bugzilla.redhat.com/show_bug.cgi?id=573185#c4

#fdisk -l /dev/md0

WARNING: GPT (GUID Partition Table) detected on '/dev/md0'! The util fdisk
doesn't support GPT. Use GNU Parted.


Disk /dev/md0: 14978.6 GB, 14978676948992 bytes
2 heads, 4 sectors/track, -638063744 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md0 doesn't contain a valid partition table

# parted /dev/md0
GNU Parted 1.8.1
Using /dev/md0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Error: Unable to open /dev/md0 - unrecognised disk label.

thanks all

Giannis
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