From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda2.sgi.com [192.48.176.25]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q0KFqEMT112326 for ; Fri, 20 Jan 2012 09:52:14 -0600 Received: from mailsrv14.zmi.at (mailsrv14.zmi.at [212.69.164.54]) by cuda.sgi.com with ESMTP id j2EnDRaKPoChbG1P for ; Fri, 20 Jan 2012 07:52:12 -0800 (PST) From: Michael Monnerie Subject: Re: Optimal XFS formatting options? Date: Fri, 20 Jan 2012 16:52:09 +0100 References: <33140169.post@talk.nabble.com> <201201171019.58714@zmi.at> <4F155CC2.3050201@hardwarefreak.com> In-Reply-To: <4F155CC2.3050201@hardwarefreak.com> MIME-Version: 1.0 Message-Id: <201201201652.10193@zmi.at> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============7248278291656162684==" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com, stan@hardwarefreak.com --===============7248278291656162684== Content-Type: multipart/signed; boundary="nextPart1834396.bf9Uqbn0vH"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit --nextPart1834396.bf9Uqbn0vH Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable On Dienstag, 17. Januar 2012 Stan Hoeppner wrote: > So to be clear, your issue with the above isn't with my partition > alignment math WRT the OP's P2000 array, but is with using XFS stripe > alignment in general, correct? Yes. I just wanted to document this as people often expand RAIDs and=20 forget to apply the changes to stripe width. =20 > There is one really simple way around this issue you describe: don't > add drives to an existing array. Simply create another array with > new disks, create a new aligned XFS on the array, and mount the > filesystem in an appropriate location. There is no 11th Commandment > stating one must have a single massive XFS atop all of one's disks. > ;) >=20 > There is little to no application software today that can't be > configured to store its data files across multiple directories. So > there's no need to box oneself into the corner you describe above. It's a management burden to do that. I've learned that systems usually=20 are strictly structured in their configuration, so it's often better to=20 extend a RAID and to keep the config, as this is cheaper in the end. At=20 least for the salaries of good admins here in Europe ;-) =2D-=20 mit freundlichen Gr=FCssen, Michael Monnerie, Ing. BSc it-management Internet Services: Prot=E9ger http://proteger.at [gesprochen: Prot-e-schee] Tel: +43 660 / 415 6531 --nextPart1834396.bf9Uqbn0vH Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) iEYEABECAAYFAk8ZjaoACgkQzhSR9xwSCbTVYwCgvfEi9+fDC1y8CX2TistG5dTL DZkAoK4heJks7Vp8lakMhrP/C6q1758C =NrjW -----END PGP SIGNATURE----- --nextPart1834396.bf9Uqbn0vH-- --===============7248278291656162684== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs --===============7248278291656162684==--