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 q468lxe7163841 for ; Sun, 6 May 2012 03:47:59 -0500 Received: from smtp.pobox.com (b-pb-sasl-quonix.pobox.com [208.72.237.35]) by cuda.sgi.com with ESMTP id nE4lHVO0JIEpqLBT for ; Sun, 06 May 2012 01:47:58 -0700 (PDT) Date: Sun, 6 May 2012 08:47:55 +0000 From: Brian Candler Subject: Re: Storage server, hung tasks and tracebacks Message-ID: <20120506084755.GC7633@nsrc.org> References: <20120502184450.GA2557@nsrc.org> <4FA27EF8.6040002@hardwarefreak.com> <20120503204157.GC4387@nsrc.org> <4FA3047D.8060908@hardwarefreak.com> <20120504163237.GA6128@nsrc.org> <4FA4C321.2070105@hardwarefreak.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4FA4C321.2070105@hardwarefreak.com> List-Id: XFS Filesystem from SGI List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: xfs-bounces@oss.sgi.com Errors-To: xfs-bounces@oss.sgi.com To: Stan Hoeppner Cc: xfs@oss.sgi.com On Sat, May 05, 2012 at 01:05:21AM -0500, Stan Hoeppner wrote: > Did I already mention checking the AC lines feeding these 3 boxes? > Assuming they're on UPS are the boost/buck features working properly? > Is your area known for fantastic clean power or dirty power with lots of > sags? That's the first thing I'd suspect with 3 new machines all > behaving this way. We thought that too. These boxes are installed in a data centre; however we just took power to a new rack and these three machines are installed in there, so it's not impossible there's a problem with the feed to that rack. We did have some machines on the A and B PDUs in this rack, but we may also try powering one from an adjacent rack. Many thanks for your helpful suggestions, and we are working through this with the equipment supplier (who is extraordinarily helpful and knowledgeable and as keen to get to the bottom of this as we are). I'll certainly let you know when we have a resolution. Regards, Brian. _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs