On Wednesday 02 March 2005 18:06, A. Khattri wrote: > > I believe you need a DEVICE specification per array. > > Yes, I have DEVICE and ARRAY lines in mdadm.conf - see the grep commands > at the end of my previous post.
"per array" :) > I have managed to get something working but its not quite right. [snip] > So I > ran fdisk on the install disk, marked the partitions as Linux RAID auto > and then tried to add them to the array. Perfect. Compile the raid and scsi drivers in, and you can forget about mdadm.conf. > Right now, I can assemble the array but the added disk is marked as a > spare instead of a mirror: > > livecd dev # mdadm -A /dev/md0 /dev/sda1 /dev/sdb1 > mdadm: /dev/md0 has been started with 1 drive and 1 spare. > > livecd dev # cat /proc/mdstat > Personalities : [raid0] [raid1] [raid5] [raid6] [raid10] > md0 : active raid1 sda1[0] sdb1[1] > 56128 blocks [1/1] [U] > > unused devices: <none> Right, so the arrays you created in fact only had one partition in? Now you're trying to re-assemble those arrays, but using 2 partitions? If I'm understanding you correctly, that won't work. But if you create an array using the partition that is/was in an array it should sync the data already on it over to the next one. > I tried stopping the device and editing my mdadm.conf to reflect the > changes I made (see grep lines in previous post) but this doesn't work. I > think I need to do an additional step to get this working? The superblock contains all the information needed to assemble arrays, so perhaps it's overriding you configuration? > (Im doing it this way because I dont want to have to do a Gentoo install > all over again on the RAID drives...). I sucesssfully converted my /home partition into a mirror like this. -- Mike Williams
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