Is there a way to quickly add the disk back to array without resyncing - something like 'mdadm --unfail'? :)
md is right not to trust the state of the replaced disk. Just in order to get to the mdadm point, you have to boot up, which means files have changed on the live disks relative to the one that was temporarily missing. You'd risk massive corruption by forcing it to accept the new disk without rebuilding the array.
You maybe could get away with this in a hardware RAID system because you can administer the array before the OS comes up. None of the RAID cards I've ever played with allow this, though.
The real solution to your problem is to put all the disks on the same kind of controller. A 4-port 3Ware card, for instance. Then all disks come up together or none of them do. You can still use Linux soft RAID with most hardware RAID cards, if you must. Or, if you want to cheap out, get a 2-port Promise IDE card and put the three disks on it.
- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
