On Wed, Jan 27, 2010 at 06:32:57PM +0000, Kristleifur Daðason wrote:
Hi all, I'm running a RAID-60 array with mdadm. There are two RAID6 arrays, /dev/md/d0 and d1, and then a RAID0 "meta-array" over that, /dev/md/tank. What happens on boot is that the d0 and d1 arrays are assembled, but the tank array isn't - Ubuntu drops me to a root shell because it couldn't find the tank partition for mounting from fstab. However, I just have to do a simple 'mdadm --assemble --scan', and the tank array pops up instantly and everything is fine. How do I instruct mdadm to wait for d0 and d1 and do kind of a second assembly pass to construct tank over them? /proc/mdstat, output of 'mdadm --detail --scan' and /etc/mdadm/mdadm.conf are included. I hope that's enough background information.
I tested it again, "mdadm --assemble --scan" is able to start stacked arrays correctly either with a configuration similar to yours or with no configuration at all !!! Maybe it is due to how ubuntu tries to assemble your array, i would guess through udev rules. Maybe the rules are triggered for real devices (/dev/sd*) and not for /dev/md*, but im not running ubuntu, so i have no way to know. Regards, L. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
