From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Berra Subject: Re: Possible failures in raid5? Date: Thu, 30 Dec 2004 07:53:45 +0100 Message-ID: <20041230065345.GA9851@percy.comedia.it> References: <41D1EB01.1040204@advocap.org> <200412290335.iBT3Zc913406@www.watkins-home.com> <20041229213841.GC32160@percy.comedia.it> <41D34066.2080501@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <41D34066.2080501@wasp.net.au> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Dec 30, 2004 at 03:40:22AM +0400, Brad Campbell wrote: >Luca Berra wrote: >>On Tue, Dec 28, 2004 at 10:35:33PM -0500, Guy wrote: >> >>>For testing the disk(s) status, look at smartd. >>>My disks are too old, but newer disks should support this. >> >>except that libata does not support S.M.A.R.T. > >There is an experimental patch in the libata-dev tree that appears (and I >mean it works for me) to support SMART reliably on a UP kernel. There is a >known issue with SMP kernels ATM. I have been using it every 20 minutes on >a reasonably loaded server with 13 SATA and 1 ATA disks now for what must >be several months with no issues. (It has helped detect a pending disk >failure quite nicely)/ > >I guess it will stay experimental until someone with an SMP machine can >assist Andy in debugging the SCSI passthough code (It's not SMART specific >at this stage). thanks for the info, i will check it out (is there a snapshot of the libata-dev for non bk users? /pub/linux/kernel/people/jgarzik/libata on kernel.org seems to be a bit behind) Unfortunately i don't own a SMP machine with sata drives. L. -- Luca Berra -- bluca@comedia.it Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \