Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758134Ab0BMV37 (ORCPT ); Sat, 13 Feb 2010 16:29:59 -0500 Received: from terminus.zytor.com ([198.137.202.10]:50118 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758114Ab0BMV3v (ORCPT ); Sat, 13 Feb 2010 16:29:51 -0500 Message-ID: <4B7719C1.1060400@zytor.com> Date: Sat, 13 Feb 2010 13:29:37 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.7) Gecko/20100120 Fedora/3.0.1-1.fc11 Thunderbird/3.0.1 MIME-Version: 1.0 To: Justin Piszcz CC: Michael Evans , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Linux mdadm superblock question. References: <4877c76c1002111752h23e14f7aibe58a89181e6f493@mail.gmail.com> <4B77044B.1020609@zytor.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 846 Lines: 24 On 02/13/2010 12:07 PM, Justin Piszcz wrote: > > My original question was does the newer superblock do anything special > or offer new features *BESIDES* the quicker resync? > 0.90 has a very bad problem, which is that it is hard to distinguish between a RAID partition at the end of volume and a full RAID device. This is because 0.90 doesn't actually tell you the start of the device. Then, of course, there are a lot of limitations on size, number of devices, and so on in 0.90. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- 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/