From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Hoeg Subject: Re: Add BBL to existing array Date: Wed, 27 Aug 2014 19:29:08 +0800 Message-ID: <20140827112908.GF15857@dolores.internal.speartail.com> References: <20140827090707.GA15857@dolores.internal.speartail.com> <20140827192721.57c57c3b@notabene.brown> <20140827103213.GE15857@dolores.internal.speartail.com> <20140827210700.5a9b3e60@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <20140827210700.5a9b3e60@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Neil, >> It basically runs: >> # mdadm --assemble --scan --run --auto=yes >> >> so it would become: >> # mdadm --assemble --update=bbl --scan --run --auto=yes > >Sorry, --update and --scan are incompatible. That explains that... >> That didn't work. I ended up in the initramfs and had to manually bring >> up the RAID as well as LVM to get the machine booted. > >That would have been a good time to wield the --update=bbl seeing you were >assembling the array anyway. I actually did - I ran: mdadm --assemble --update=bbl /dev/md0 Which returned without error, but it doesn't seem to have changed anything (or am I looking in the wrong place?) # mdadm --detail /dev/md0 /dev/md0: Version : 1.2 Creation Time : Fri Jan 11 15:02:11 2013 Raid Level : raid6 Array Size : 5859439616 (5588.00 GiB 6000.07 GB) Used Dev Size : 2929719808 (2794.00 GiB 3000.03 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Intent Bitmap : Internal Update Time : Wed Aug 27 19:23:06 2014 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K Name : nas2:md0 UUID : d6c281be:30db3be9:b1316603:00f77a7d Events : 190523 Number Major Minor RaidDevice State 0 8 2 0 active sync /dev/sda2 1 8 18 1 active sync /dev/sdb2 3 8 34 2 active sync /dev/sdc2 4 8 50 3 active sync /dev/sdd2 Or is the 4KB mentioned in /proc/mdstat ? Personalities : [raid6] [raid5] [raid4] md0 : active raid6 sda2[0] sdd2[4] sdc2[3] sdb2[1] 5859439616 blocks super 1.2 level 6, 512k chunk, algorithm 2 [4/4] [UUUU] bitmap: 1/2 pages [4KB], 1048576KB chunk ^^^^^ unused devices: >Oops. I forgot to update that list when I added 'bbl' and 'no-bbl'. > >Will be fixed in 3.3.3. Looking forward to seeing that in Debian in 2017... ;-) -- Regards, Peter