On 9/8/06, martin.kihlgren@xxxxxxxxxx <martin.kihlgren@xxxxxxxxxx> wrote:
So, what I want to do is: * Mark the synced spare drive as working and in position 1 * Assemble the array without the unsynced spare and check if this provides consistent data * If it didnt, I want to mark the synced spare as working and in position 3, and try the same thing again * When I have it working, I just want to add the unsynced spare and let it sync normally * Then I will create a write-intent bitmap to avoid the dangerously long sync times, and also buy a new USB controller hoping that it will solve my problems
You can recreate the raid array with 1 missing disk, like this: mdadm -C /dev/md1 /dev/sdn1 /dev/sdX1 /dev/sdn1 /dev/sdn1 missing The ordering is relevant, raid-disks 0,1,2,3,4 or so. beware, you have to have block size and symmetry correct, so better backup mdadm --examine and --detail output beforehand. This create op causes no sync (no danger data overwrites), as there is still the one drive missing, but raid-superblocks are rewritten. (On a sidenote, i'm uncertain if a bitmap helps in the case of single-device remove-add cycle? I thought it was only for crashes, at least for now..) - 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
