RE: Volumes over 2 Terrabytes



I would also suggest changing a block size. Please refer to http://en.wikipedia.org/wiki/Ext3

Kind regards,

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-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Corey Kovacs
Sent: 01 June 2011 23:39
To: General Red Hat Linux discussion list
Subject: Re: Volumes over 2 Terrabytes

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@xxxxxxxxxxxxxxx> 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...
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Sent from my Android phone with K-9 Mail. Please excuse my brevity.

"Martini, Dave" <martini1@xxxxxxxx> 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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Relevant Pages

  • Re: Volumes over 2 Terrabytes
    ... Either will work but the LVM method will be more flexible down the road. ... I'm running RHEL 5 ... 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. ...
    (RedHat)
  • Re: Volumes over 2 Terrabytes
    ... I'm running RHEL 5 ... 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. ...
    (RedHat)
  • Volumes over 2 Terrabytes
    ... I'm running RHEL 5 ... 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. ...
    (RedHat)
  • Re: Volumes over 2 Terrabytes
    ... Of course, as mentioned already, you could create a bunch of 2TB luns ... Either will work but the LVM method ... I'm running RHEL 5 ... When I create a 10 terrabyte Lun, the RHEL box only sees it as 2 terrabytes. ...
    (RedHat)