Hi there, I've got a load of data on an md RAID 1 array assembled from 2x4TB disks. I'm looking to expand this by adding a third 4TB disk and converting the array to RAID 5. Now the required procedure is documented on the wiki, but my question is: When I convert the RAID 1 array to RAID 5, the array will be in a degraded state as it rebuilds onto the new disk. However, if one of the original two disks were to fail during this procedure, is mdadm smart enough to convert the array back to degraded RAID 1, or will my array now be a broken RAID 5 with no path to recovery? Many thanks, Paul
