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From: Idan Kedar <idank@tonian.com>
Date: Wed, 21 Nov 2012 18:08:36 +0200
Message-ID: <CABpMAyKa8UAxFu8sRrkvf=HqfdLLpURPC3LLsyOLoEdqArdk0A@mail.gmail.com>
Subject: Re: Metadata Server for PNFS testing
To: Rodel Miguel <rodelfmiguel@gmail.com>
Cc: NFS list <linux-nfs@vger.kernel.org>
Content-Type: text/plain; charset=ISO-8859-1
Sender: linux-nfs-owner@vger.kernel.org

On Wed, Nov 21, 2012 at 5:29 PM, Rodel Miguel <rodelfmiguel@gmail.com> wrote:
> Hi Idan,
>
> It would be nice to have a simple file layout, but any layout would
> do.  Thank you very much!
>
> Kind Regards,
> Rodel
>

The pNFS metadata server is available in Benny Halevy's git
repository. Look here for instructions:

http://linux-nfs.org/wiki/index.php/PNFS_Setup_Instructions

For file layout, you can compile the kernel with pnfs-lexp, which
exports a local file system with pNFS file layout.

I generally prefer to use object layout, because it allows me to
physically separate the MDS from the data server. in order to set up
object layout, compile the MDS with the exofs file system, and use it
as your pNFS export. exofs requires an OSD rather than a plain block
device, so look up for instructions on how to set this up.

as for the client, the upstream client works, though if you want to
use object layout you'll need scsi-initiator-utils.

-- 
idank