Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752878AbWLSPob (ORCPT ); Tue, 19 Dec 2006 10:44:31 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753030AbWLSPob (ORCPT ); Tue, 19 Dec 2006 10:44:31 -0500 Received: from tmailer.gwdg.de ([134.76.10.23]:43941 "EHLO tmailer.gwdg.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752878AbWLSPoa (ORCPT ); Tue, 19 Dec 2006 10:44:30 -0500 Date: Tue, 19 Dec 2006 16:43:36 +0100 (MET) From: Jan Engelhardt To: Michael Tokarev cc: Wiebe Cazemier , linux-kernel@vger.kernel.org Subject: Re: Software RAID1 (with non-identical discs) performance In-Reply-To: <4587F113.2000804@tls.msk.ru> Message-ID: References: <4587F113.2000804@tls.msk.ru> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Spam-Report: Content analysis: 0.0 points, 6.0 required _SUMMARY_ Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 745 Lines: 21 >Think of "PnP geometry" supported by all nowadays drives. > >It's 255 heads, 63 sectors per track, and whatever number of cylinders. You do not really need the 255-63-X PNP mode. Given a hard disk small enough, VMware may make it a 16-63-X, 16-64-X, or something like that. Still works as intended. You see, the kernel mostly gives a damn about CHS, since the moment the partition table is scanned, it is translated into LBA offsets ( part of that should be seen in /proc/partitions). -`J' -- - 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/