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 q1OCqkFR040624 for ; Fri, 24 Feb 2012 06:52:46 -0600 Received: from smtprelay04.ispgateway.de (smtprelay04.ispgateway.de [80.67.18.16]) by cuda.sgi.com with ESMTP id 5uMH3vSldmYpbQOa for ; Fri, 24 Feb 2012 04:52:41 -0800 (PST) Received: from [62.43.225.238] (helo=[192.168.30.191]) by smtprelay04.ispgateway.de with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.68) (envelope-from ) id 1S0udd-0007DV-0N for xfs@oss.sgi.com; Fri, 24 Feb 2012 13:52:41 +0100 Message-ID: <4F478818.4050803@cape-horn-eng.com> Date: Fri, 24 Feb 2012 13:52:40 +0100 From: Richard Ems MIME-Version: 1.0 Subject: creating a new 80 TB XFS List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: xfs@oss.sgi.com Hi list, I am not a storage expert, so sorry in advance for probably some *naive* questions or proposals from me. 8) *INTRO* We are getting new hardware soon and I wanted to check with you my plans for creating and mounting this XFS. The storage system is from EUROstor, http://eurostor.com/en/products/raid-sas-host/es-6600-sassas-toploader.html . We are getting now 32 x 3 TB Hitachi SATA HDDs. I plan to configure them in a single RAID 6 set with one or two hot-standby discs. The raw storage space will then be 28 x 3 TB =3D 84 TB. On this one RAID set I will create only one volume. Any thoughts on this? This storage will be used as secondary storage for backups. We use dirvish (www.dirvish.org, which uses rsync) to run our daily backups. dirvish heavily uses hard links. It compares all files, one by one, and synchronizes all new or changed files with rsync to the current daily dir YYYY-MM-DD, and creates hard links for all not changed files from the last previous backup on YYYY-MM-(DD-1) to the current YYYY-MM-DD directory. *MKFS* We also heavily use ACLs for almost all of our files. Christoph Hellwig suggested in a previous mail to use "-i size=3D512" on XFS creation, so my mkfs.xfs would look something like: mkfs.xfs -i size=3D512 -d su=3Dstripe_size,sw=3D28 -L Backup_2 /dev/sdX1 *MOUNT* On mount I will use the options mount -o noatime,nobarrier,nofail,logbufs=3D8,logbsize=3D256k,inode64 /dev/sdX1 /mount_point What about the largeio mount option? In which cases would it be useful? Do you have any other/better suggestions or comments? Many thanks, Richard -- = Richard Ems mail: Richard.Ems@Cape-Horn-Eng.com Cape Horn Engineering S.L. C/ Dr. J.J. D=F3mine 1, 5=BA piso 46011 Valencia Tel : +34 96 3242923 / Fax 924 http://www.cape-horn-eng.com _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs