From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: SLES 9 SP3 and mdadm 2.6.1 (via rpm) Date: Tue, 12 Jun 2007 17:34:55 +1000 Message-ID: <18030.19615.898281.457910@notabene.brown> References: <20070612072408.19140@gmx.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from Thorsten Wolf on Tuesday June 12 Sender: linux-raid-owner@vger.kernel.org To: Thorsten Wolf Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Tuesday June 12, T_Wolf@gmx.net wrote: > Hello everyone. > > I've got a SLES9 SP3 running and I've been quite happy with it so far. > > Recently, I've created a 4 disk spanning RAID-5 on our company > server. Runs quite nice and we're happy with that too. I created > that RAID using the SLES mdadm (1.4 I believe) package. > > After discovering that there is a much newer mdadm out here (2.6.1), > I decided to upgrade. It went just fine. Raid still running at 120 > MB/sec. > > After adding a disk to the raid, which went fine as well...... BUT: > > The added disk /dev/sda1 shows up in /proc/mdstat, but does not have > the "spare (s)" flag. > > Plus... the --grow doesn't work... > > I get the: mdadm: /dev/md0: Cannot get array details from sysfs > error which has been discussed before. Can it be that this is caused > by the 2.6.5-7.2xx Kernel? Any ideas? Yes. All of your issues are caused by using a 2.6.5 based kernel. However even upgrading to SLES10 would not get you raid5-grow. That came a little later. You would need to compile a mainline kernel or wait for SLES11. NeilBrown