From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Fedyk Subject: Re: RAID 5 from 2.4.24 to 2.6.0 Date: Thu, 8 Jan 2004 17:28:36 -0800 Sender: linux-raid-owner@vger.kernel.org Message-ID: <20040109012836.GT1882@matchmail.com> References: <20040108151447.GA15294@piper.madduck.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20040108151447.GA15294@piper.madduck.net> To: linux raid mailing list List-Id: linux-raid.ids On Thu, Jan 08, 2004 at 04:14:47PM +0100, Martin F Krafft wrote: > Due to stability problems with the RAID code in 2.4 (detaailed > message forthcoming), I would like to try 2.6.0 on one of our > servers. However, anticipating problems, I want to make sure that > this change is not irreversible. > > Can I mount RAID 1 and 5 partitions in 2.6.0 and 2.4.24 > interchangeably? Yes, you can. Though since the 2.4 raid code is quite fragile in states not possible from 2.4 code, I found one problem a while back where 2.6-test would set the state bits wrong. The problem was fixed though. You can use 2.6 and 2.4 raid interchangably, but don't scrimp on persuing the problem from a 2.4 perspective.