Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752636Ab0LVXNc (ORCPT ); Wed, 22 Dec 2010 18:13:32 -0500 Received: from mail-qw0-f46.google.com ([209.85.216.46]:40015 "EHLO mail-qw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752436Ab0LVXNb convert rfc822-to-8bit (ORCPT ); Wed, 22 Dec 2010 18:13:31 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=hwYgtfeyTEG4BTr9J8R7DqCrRL5GaI21xMmcM4FOXx+27UVBa6aJSKHWpIVbbvvDQf vrF4RPFNBHFAin6C+wd8iCexxLa+JLzw9KPvnmuwNPgWk2erA86UU6r0ufEHT5BY8UmK JphxU3CggdaDAbtmJL0dwYp+o5rcxMcuvkA3M= MIME-Version: 1.0 In-Reply-To: <20101222224601.GF30941@bitwizard.nl> References: <20101220141553.GA6088@bitwizard.nl> <20101222224601.GF30941@bitwizard.nl> From: David Rees Date: Wed, 22 Dec 2010 15:13:10 -0800 Message-ID: Subject: Re: Slow disks. To: Rogier Wolff Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1111 Lines: 23 On Wed, Dec 22, 2010 at 2:46 PM, Rogier Wolff wrote: > On Wed, Dec 22, 2010 at 12:52:08PM -0800, David Rees wrote: >> On Mon, Dec 20, 2010 at 6:15 AM, Rogier Wolff wrote: >> > A friend of mine has a server in a datacenter somewhere. His machine >> > is not working properly: most of his disks take 10-100 times longer >> > to process each IO request than normal. >> >> I've seen noticeable slowdowns before when the disks were running long >> SMART tests. ?It doesn't seem to affect all drives the same. ?The >> smartctl data you posted didn't say whether or not the disks were >> currently running a SMART test, but it's worth double checking. > > No, the machine has trouble 24/7, I seriously doubt that it would be > running smart tests 24/7. It can not hurt to check the status of the disk to be sure... -Dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/