Hi again! Strange things happen and I don't know why. After resynching the RAID I get following output: ====snip============================================================= thismachine:~ # cat /proc/mdstat Personalities : [raid5] read_ahead 1024 sectors md0 : active raid5 hdg1[2] hdh1[3] hdf1[1] hde1[0] 480214656 blocks level 5, 128k chunk, algorithm 2 [4/4] [UUUU] unused devices: <none> ====snap============================================================= So it seems, that hdg1 moved by itself from "4" to "2". What happened (according to my previous email)? Do I have to do any further things or is my RAID now working fine? Ciao, Simon - 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