Volumes over 2 Terrabytes

[Corey Kovacs]

It may be that you are using fdisk to create the partitions which only
uses an "msdos" disk label. If you have luns larger than 2TB, you need
to use the "parted" tool and give the lun a "gpt" disk label. That
will get you beyond 2TB for a single lun.

Of course, as mentioned already, you could create a bunch of 2TB luns
and tie them together via lvm. Either will work but the LVM method
will be more flexible down the road.

-C

On Wed, Jun 1, 2011 at 11:26 PM, Bob Wickline <wick at bobwickline.com> wrote:
> You might want to rethink your strategy. I always limit myself to 8TB LUNs and create four (4) 2TB fdisk primary partitions and cat them together in an LVM volume. And then unless you are on RHEL6, you will need an XFS license to create that large of filesystem...
> --
> Sent from my Android phone with K-9 Mail. Please excuse my brevity.
>
> "Martini, Dave" <martini1 at llnl.gov> wrote:
>
> I'm running RHEL 5
> 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64
> On Intel Xeon CUP L5530.
>
> I'm setting up some Winchester storage with 16 terrabytes of space.
> When I create a 10 terrabyte Lun, the RHEL box only sees it as 2 terrabytes.
>
> Will the above Kernel/CPU allow for volumes greater than 2 terrabytes?
> Anyone have any tips on how to do this?
>
> Thank you.
> Dave Martini
> LLNL
>
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