From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Leslie Rhorer" Subject: RE: RAID halting Date: Fri, 10 Apr 2009 20:37:29 -0500 Message-ID: <20090411013735.VDNG2520.cdptpa-omta04.mail.rr.com@Leslie> References: <49DF666A.7030603@tmr.com> Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <49DF666A.7030603@tmr.com> Sender: linux-raid-owner@vger.kernel.org To: 'Linux RAID' List-Id: linux-raid.ids > > Something very disturbing is happening now, however. Just a few minutes > > after loading oprofile, the system did a sudden total shutdown. The > file > > systems were all left dirty, and power was suddenly cut to the main > chassis. > > This has never happened before. I rebooted the system, and the file > systems > > replayed their journals. Some data was lost, of course, but nothing > > serious. A few hours later, the exact same thing happened again: A > sudden > > shut-down. Nothing like this has ever happened before. Of course the > > system can issue a power shutdown from software, but it is supposed to > clean > > up the file systems first, and it's not supposed to just do it > autonomously. > > > > Just for grins, is this system by any chance on a UPS? Because I found > an interesting failure mode if that's the case. Yeah, you bet. Indeed, the first thing I considered was a false Low Battery indication causing the system to shut down, but in that case it should have been a clean shut-down.