From mboxrd@z Thu Jan 1 00:00:00 1970 From: Miha Verlic Subject: Re: devices get kicked from RAID about once a month Date: Wed, 02 Jun 2010 21:55:22 +0200 Message-ID: <4C06B72A.5080304@krneki.org> References: <87k4qho723.fsf@uwo.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <87k4qho723.fsf@uwo.ca> Sender: linux-raid-owner@vger.kernel.org To: Dan Christensen Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 06/02/2010 04:14 PM, Dan Christensen wrote: > I tried disconnecting and re-connecting all four SATA cables, but the > problem occurred again. In fact, today *two* partitions were kicked out > of their (different) raid devices. Well the logs only show that separate hard drives stoped responding for a while and kernel resetted sata link at that point. Since it's happening on random drives, and even two at a time, I'd say hard drives itself are not the problem. I'd replace power supply first. I've had similar simptoms on one of my machines - it either crashed or kicked one of drives out of the array. It happened randomly, but usually once per month - who knows, maybe a spike in a grid, sudden cpu usage or something similar caused it. Anyway - bigger power supply solved the problem. -- Miha