Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752139Ab0LVWqE (ORCPT ); Wed, 22 Dec 2010 17:46:04 -0500 Received: from dtp.xs4all.nl ([80.101.171.8]:39713 "HELO abra2.bitwizard.nl" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with SMTP id S1751637Ab0LVWqD (ORCPT ); Wed, 22 Dec 2010 17:46:03 -0500 Date: Wed, 22 Dec 2010 23:46:01 +0100 From: Rogier Wolff To: David Rees Cc: Rogier Wolff , linux-kernel@vger.kernel.org Subject: Re: Slow disks. Message-ID: <20101222224601.GF30941@bitwizard.nl> References: <20101220141553.GA6088@bitwizard.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: BitWizard.nl User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1409 Lines: 28 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. Roger. -- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 ** ** Delftechpark 26 2628 XH Delft, The Netherlands. KVK: 27239233 ** *-- BitWizard writes Linux device drivers for any device you may have! --* Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. Does it sit on the couch all day? Is it unemployed? Please be specific! Define 'it' and what it isn't doing. --------- Adapted from lxrbot FAQ -- 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/