[CentOS] ext3 filesystems larger than 8TB
Ray Van Dolson
rayvd at bludgeon.org
Fri May 2 19:54:53 UTC 2008
On Fri, May 02, 2008 at 02:36:41PM -0500, Monty Shinn wrote:
> Greetings.
>
> I am trying to create a 10TB (approx) ext3 filesystem. I am able to
> successfully create the partition using parted, but when I try to use
> mkfs.ext3, I get an error stating there is an 8TB limit for ext3
> filesystems.
>
> I looked at the specs for 5 on the "upstream" vendor's website, and they
> indicate that there is a 16TB limit on ext3.
>
> Has anyone been able to create a ext3 filesystem larger than 8TB?
>
> If ext3 isn't an option, has anyone used the kmod-xfs-smp.i686 module
> mentioned on the centos site? Surely it doesn't have an 8TB limit...
>
> specs:
>
> Centos 5.1
> kernel-2.6.18-53.1.14.el5
> 3Ware 9550SXU 12port raid card
>
> Am I just walking into a big nightmare?
>
> Any thoughts would be greatly appreciated.
>
I think it *theoretically* should work as ext3 should to 16TB.
However, we ran into issues with userland tools and such. Possibly
related to x86_64 vs i386 stuff, but in the end to avoid continued
troubleshooting we just used centosplus + jfs. Works perfectly for our
10TB filesystem.
Ray
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