From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Greaves Subject: Re: RAID5 - 2nd drive died whilst waiting for RMA Date: Wed, 17 Nov 2004 11:21:25 +0000 Message-ID: <419B3435.3080707@dgreaves.com> References: <200411132039.iADKdDN07474@www.watkins-home.com> <41968282.6060306@dgreaves.com> <4198DF79.8080809@dgreaves.com> <41999A9B.2000907@wasp.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <41999A9B.2000907@wasp.net.au> Sender: linux-ide-owner@vger.kernel.org To: Brad Campbell Cc: Guy , =?UTF-8?B?TcOlbnMgUnVsbGfDpXJk?= , linux-raid@vger.kernel.org, linux-ide@vger.kernel.org List-Id: linux-raid.ids Brad Campbell wrote: > David Greaves wrote: > >> Now all I need is SMART through libata. > > > If you are using a UP system, grab the patches from Jeff's libata-dev > tree and have at it. > I have been beating it hard on 14 drives here on a loaded working > server for weeks and have not managed to toast anything yet. It's > great being able to keep tabs on the remaining whirly bits and > hopefully get an early warning before they expire. > > (Fingers crossed. 12 of them are Maxtor Maxline-II drives but all sit > between 35 & 40 deg C) > > Brad Thanks Brad I've been tracking this on the ide list and I've been nervous of applying anything since I don't have proper backups. I'm relying on redundancy. I also found this comment by Jeff on some patches: As I noted in another email, be careful... that patch bypasses the SCSI command synchronization, so you could potentially send a SMART command to the hardware while another command is still in progress. He follows up by saying this *will* result in corruption. And although I *think* he was refering to an earlier incarnation... I looked to see what I'd need to do and given I'm running 2.6.9 I take it I'd have to apply: http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.9-libata1-dev1.patch.bz2 which depends on http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.9-libata1.patch.bz2 That seems like quite a lot and I'm not clear on the level of stability impact on my system. Now although I track linux-ide I doubt I'm fully informed!! So if anyone would like to inform me of a reasonable course of action then I'm actually reasonably happy to apply the SMART patch. David