I think what you did should work, but... I have had similar problems. Try again, but this time don't include any spare disks, or any other disks. Only include the disks you know have the data. Or, just list the disks on the command line. Keep your fingers crossed! Guy -----Original Message----- From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid-owner@xxxxxxxxxxxxxxx] On Behalf Of Jon Lewis Sent: Tuesday, August 31, 2004 4:10 PM To: linux-raid@xxxxxxxxxxxxxxx Cc: aaron@xxxxxxxxxxx Subject: RE: raid5 won't resync Now we've got a new problem with the raid array from last night. We've switched qlogic drivers to one that some people have posted is more stable than the one we were using. This unfortunately changed all the scsi device names. i.e. abcdefg hijklmn has become hijklmn abcdefg I put the following in /etc/mdadm.conf: DEVICE /dev/sd[abcdefghijklmn][1] ARRAY /dev/md2 level=raid5 num-devices=10 UUID=532d4b61:48f5278b:4fd2e730:6dd4a608 That DEVICE line should cover all the members (under their new device names) for the raid5 array. then I ran: mdadm --assemble /dev/md2 --uuid 532d4b61:48f5278b:4fd2e730:6dd4a608 or mdadm --assemble /dev/md2 --scan Both terminate with the same result: mdadm: /dev/md2 assembled from 4 drives and 1 spare - not enough to start the array. but if I look at /proc/mdstat, it did find all 10 (actually 11) devices. # cat /proc/mdstat Personalities : [raid1] read_ahead 1024 sectors md2 : inactive sdc1[6] sdm1[10] sdf1[9] sde1[8] sdd1[7] sdg1[5] sdl1[4] sdn1[3] sdk1[2] sdj1[1] sdi1[0] 0 blocks md1 : active raid1 hda1[0] hdc1[1] 30716160 blocks [2/2] [UU] [>....................] resync = 3.5% (1098392/30716160) finish=298.2min speed=1654K/sec md0 : active raid1 sdh2[0] sda2[1] 104320 blocks [2/2] [UU] unused devices: <none> I suspect it's found both the failed drive (originally sde1, now named sdl1) and the spare that it had started, but never finished, rebuilding on (sdg1, now sdn1). Why is mdadm saying there are only 4 devices + 1 spare? Is there a best way to proceed at this point to try to get this array repaired? ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ - 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 - 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
