From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Daniel L. Miller" Subject: Re: Raid-10 mount at startup always has problem Date: Sun, 09 Sep 2007 18:53:32 -0700 Message-ID: <46E4A39C.8040509@amfes.com> References: <46D3147D.2040201@amfes.com> <46D49F1A.7030409@tmr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <46D49F1A.7030409@tmr.com> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Bill Davidsen wrote: > Daniel L. Miller wrote: >> Hi! >> >> I have a four-disk Raid-10 array that I created and mount with >> mdadm. It seems like every re-boot, either the array is not >> recognized altogether, or one of the disks is not added. Manually >> adding using mdadm works. > > What superblock version and partition type did you use? mdadm -D please. Thanks for the reply. I've been wondering why no one answered me - then discovered your answer in my mailbox! Must have been hiding somewhere . . . . Anyway - mdadm -D /dev/md0 /dev/md0: Version : 00.90.03 Creation Time : Tue Oct 3 19:11:53 2006 Raid Level : raid10 Array Size : 312581632 (298.10 GiB 320.08 GB) Used Dev Size : 156290816 (149.05 GiB 160.04 GB) Raid Devices : 4 Total Devices : 4 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Sun Sep 9 18:51:17 2007 State : clean Active Devices : 4 Working Devices : 4 Failed Devices : 0 Spare Devices : 0 Layout : near=2, far=1 Chunk Size : 32K UUID : 9d94b17b:f5fac31a:577c252b:0d4c4b2a Events : 0.10811466 Number Major Minor RaidDevice State 0 8 0 0 active sync /dev/sda 1 8 16 1 active sync /dev/sdb 2 8 32 2 active sync /dev/sdc 3 8 48 3 active sync /dev/sdd And you didn't ask, but my mdadm.conf: DEVICE partitions ARRAY /dev/.static/dev/md0 level=raid10 num-devices=4 UUID=9d94b17b:f5fac31a:577c252b:0d4c4b2a Daniel