From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from cuda.sgi.com (cuda3.sgi.com [192.48.176.15]) by oss.sgi.com (8.14.3/8.14.3/SuSE Linux 0.8) with ESMTP id q46916SC165858 for ; Sun, 6 May 2012 04:01:06 -0500 Received: from mail.profihost.ag (mail.profihost.ag [85.158.179.208]) by cuda.sgi.com with ESMTP id 3v7j7ZnDaAgiSrOF (version=TLSv1 cipher=AES256-SHA bits=256 verify=NO) for ; Sun, 06 May 2012 02:01:04 -0700 (PDT) Message-ID: <4FA63DDA.9070707@profihost.ag> Date: Sun, 06 May 2012 11:01:14 +0200 From: Stefan Priebe MIME-Version: 1.0 Subject: suddenly slow writes on XFS Filesystem List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: "xfs@oss.sgi.com" Hi, since a few days i've experienced a really slow fs on one of our backup systems. I'm not sure whether this is XFS related or related to the Controller / Disks. It is a raid 10 of 20 SATA Disks and i can only write to them with about 700kb/s while doing random i/o. I tried vanilla Kernel 3.0.30 and 3.3.4 - no difference. Writing to another partition on another xfs array works fine. Details: #~ df -h /dev/sdb1 4,6T 4,4T 207G 96% /mnt #~ df -i /dev/sdb1 4875737052 4659318044 216419008 96% /mnt #~ xfs_db -c frag -r /dev/sdb1 actual 83160469, ideal 82145389, fragmentation factor 1,22% #~ xfs_info /dev/sdb1 meta-data=/dev/sdb1 isize=256 agcount=5, agsize=268435392 blks = sectsz=512 attr=2 data = bsize=4096 blocks=1218967031, imaxpct=5 = sunit=64 swidth=1280 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=32768, version=2 = sectsz=512 sunit=64 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 #~ cat /proc/mounts /dev/sdb1 /mnt xfs rw,noatime,nodiratime,attr2,nobarrier,logbufs=8,logbsize=256k,sunit=512,swidth=10240,prjquota 0 0 Any ideas? Stefan _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs