From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brad Campbell Subject: Re: Possible failures in raid5? Date: Thu, 30 Dec 2004 03:40:22 +0400 Message-ID: <41D34066.2080501@wasp.net.au> References: <41D1EB01.1040204@advocap.org> <200412290335.iBT3Zc913406@www.watkins-home.com> <20041229213841.GC32160@percy.comedia.it> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20041229213841.GC32160@percy.comedia.it> Sender: linux-raid-owner@vger.kernel.org To: Luca Berra Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids 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). -- Brad /"\ Save the Forests \ / ASCII RIBBON CAMPAIGN Burn a Greenie. X AGAINST HTML MAIL / \