From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: SATA repeated failure (command 0x35 timeout, status 0xd8) Date: Tue, 03 Oct 2006 15:54:53 +0900 Message-ID: <4522093D.9040506@gmail.com> References: <62b0912f0609240816q54c3535bt86f781745ecbfa13@mail.gmail.com> <4518B643.6030407@gmail.com> <62b0912f0610011927k789b63f4r370b419e5b98bb5f@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from py-out-1112.google.com ([64.233.166.181]:53619 "EHLO py-out-1112.google.com") by vger.kernel.org with ESMTP id S965273AbWJCGyq (ORCPT ); Tue, 3 Oct 2006 02:54:46 -0400 Received: by py-out-1112.google.com with SMTP id n25so2826151pyg for ; Mon, 02 Oct 2006 23:54:45 -0700 (PDT) In-Reply-To: <62b0912f0610011927k789b63f4r370b419e5b98bb5f@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Molle Bestefich Cc: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Molle Bestefich wrote: [--snip--] > The above repeats itself thru modes UDMA/66, UDMA/44, UDMA/33, > UDMA/25, UDMA/16, PIO4, PIO3, PIO1 and PIO0. Can you full dmesg for this? Preferably w/ timestamp? > At which point /dev/sdb disappears completely, only to reappear as > /dev/sdh: > =============== > SCSI device sdh: 398297088 512-byte hdwr sectors (203928 MB) > sdh: Write Protect is off > sdh: Mode Sense: 00 3a 00 00 > SCSI device sdh: drive cache: write back > SCSI device sdh: 398297088 512-byte hdwr sectors (203928 MB) > sdh: Write Protect is off > sdh: Mode Sense: 00 3a 00 00 > SCSI device sdh: drive cache: write back > =============== > > (Odd.) > > I don't get why PowerMax works this drive just fine while Linux > doesn't. Perhaps because PowerMax only uses SMART commands and > doesn't transfer data over the SATA bus? > > Anyway, with the device now failing fairly consistently, I guess I > should begin moving around cables, controllers, disks etc. again. I'm > very worried about doing this though, since I'm pretty sure that it'll > break the MD array on the disks very quickly.. Your problem seems to be hardware transmission error. I don't know what a powermax is and doesn't know what it does, so you'll have to play the swap-and-see-what-breaks game to figure out the problematic part. Thanks. -- tejun