Kyler Laird (kyler-keyword-linuxraid.6e1399@xxxxxxxxxx) wrote on 10 June 2009 16:03: >I'm in a bind. I have three RAID6s on a Sun X4540. A bunch of disks >threw error all of a sudden. Two arrays came back (degraded) on reboot >but the third is having problems. ... >Here's the dmesg output when I try to assemble using "mdadm --assemble >/dev/md2 /dev/sda[g-v]". > > > [ 3469.703048] md: bind<sdag> > [ 3469.703305] md: bind<sdai> > [ 3469.703554] md: bind<sdaj> > [ 3469.703806] md: bind<sdak> > [ 3469.704043] md: bind<sdal> > [ 3469.704294] md: bind<sdam> > [ 3469.704544] md: bind<sdan> > [ 3469.775701] md: bind<sdao> > [ 3469.775946] md: bind<sdap> > [ 3469.776198] md: bind<sdaq> > [ 3469.776453] md: bind<sdar> > [ 3469.776695] md: bind<sdas> > [ 3469.776953] md: bind<sdat> > [ 3469.777204] md: bind<sdau> > [ 3469.777442] md: bind<sdav> > [ 3469.777698] md: bind<sdah> > [ 3469.777762] md: kicking non-fresh sdag from array! > [ 3469.777766] md: unbind<sdag> > [ 3469.801894] md: export_rdev(sdag) > [ 3469.801898] md: md2: raid array is not clean -- starting background reconstruction > [ 3469.825589] raid5: device sdah operational as raid disk 1 > [ 3469.825591] raid5: device sdau operational as raid disk 14 > [ 3469.825593] raid5: device sdat operational as raid disk 13 > [ 3469.825594] raid5: device sdas operational as raid disk 12 > [ 3469.825595] raid5: device sdar operational as raid disk 11 > [ 3469.825596] raid5: device sdaq operational as raid disk 10 > [ 3469.825597] raid5: device sdap operational as raid disk 9 > [ 3469.825598] raid5: device sdao operational as raid disk 8 > [ 3469.825599] raid5: device sdan operational as raid disk 7 > [ 3469.825600] raid5: device sdam operational as raid disk 6 > [ 3469.825601] raid5: device sdal operational as raid disk 5 > [ 3469.825602] raid5: device sdak operational as raid disk 4 > [ 3469.825603] raid5: device sdaj operational as raid disk 3 > [ 3469.825604] raid5: device sdai operational as raid disk 2 > [ 3469.825606] raid5: cannot start dirty degraded array for md2 You can try to use mdadm -A -f /dev/md2 <list of devices> to force the array to assemble. Should work if all disks stopped simultaneously. -- 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