>Why doesn't it instead give the same sort of metadata that the other disks >show? It's as if there is no raid superblock on these two disks, but how >is this possible if the disks have been part of a working array? Update: by chance, I discovered that if I mdadm -e /dev/sdg1 then I get the output of the superblock. That is, the superblock is found on the partition (apparently) but not on the disk device. This also works for disk sdh, for which I couldn't find a superblock, either. However, for the rest of the disks from the array (sd[cdefi]), there is no such device as "sdc1", for example. I have also discovered that for the drives where mdadm -e /dev/sdc (just the disk) works, the version of the metadata is 0.90.00, where as those other two where the superblock is on the partition (i.e. sdg1), the version is 1.2. This makes more sense, since I create the array originally (back in December) with the following command: mdadm --create --verbose /dev/md0 --metadata=1.2 --level=6 --raid-devices=7 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 --spare-devices=1 /dev/sdj1 So, if I created the array using version 1.2 of the metadata and the devices specified are sd[cdefghij]1, then why am I not able to see that metadata now? I am really confused. --- Mike VanHorn Senior Computer Systems Administrator College of Engineering and Computer Science Wright State University 265 Russ Engineering Center 937-775-5157 michael.vanhorn@xxxxxxxxxx http://www.cecs.wright.edu/~mvanhorn/ -- 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
