On Thursday March 31, ronny_p@xxxxxxx wrote: > Hi, > > we still have troubles with our raid5 array. You can find the history of > the fault in detail in my other postings (11.3.2005). > > I will show you my attempts. > > There are 4 discs (Maxtor 250GB) in a raid5-array. One disc failed and > we sent it back to Maxtor. Now, the array consists of 3 discs. > I tried to reassemble it, > > mdadm -A --run --force /dev/md2 /dev/hdi1 /dev/hdk1 /dev/hdo1 > > but i got an error: > > -snip- > mdadm: failed to RUN_ARRAY /dev/md2: Invalid argument > -snap- It looks like hdi1 doesn't think it is an active part of the array. It is just a spare. It is as-though the array was not fully synced when hdm1 (?) failed. Looking back through previous emails, it looks like you had 2 drive fail in a raid5 array. This means you lose. :-( Your best bet would be: mdadm --create /dev/md2 --level 5 -n 4 /dev/hda1 /dev/hdk1 missing /dev/hdo1 and hope that the data you find on md2 isn't too corrupted. You might be lucky, but I'm not holding my breath - sorry. NeilBrown - 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