Hi Neil Thanks very much for your help and pointers. This is what I was thinking a while ago when I was looking at this. Suffered a few very quick failures in quick succession and probably got too trigger happy on my rebuilding in between. I will look deeper and report back if I come up with anything useful. Thanks again. Cheers Derek On 31 March 2014 16:37, NeilBrown <neilb@xxxxxxx> wrote: > On Mon, 31 Mar 2014 15:24:07 +0800 Yorik <yoriks13@xxxxxxxxxxxxxx> wrote: > >> Hi Neil >> >> Thanks for your quick reply. :) Output as follows. and yes I agree. >> sdf is strange, also some devices think the Array has different number >> of devices Active.. It all got quite muddled up at the time of >> failure. > > So..... > sdf thinks > Raid Devices : 6 > others think > Raid Devices : 8 > > So that's not going to work. > However if we just ignore sdf, then sdg and sdi thinkg > > Array UUID : a5cb0ced:fee37e80:bb291f1a:c5b2f600 > > while the rest think: > > Array UUID : e32ad2c6:5f99dd8f:2572c3a8:c485db00 > > So you have at most 5 device which think they are the same array, > which isn't enough for an 8-device RAID6. > > It looks like you have tried to --create the array several times, > at > > Creation Time : Tue Feb 4 00:28:54 2014 > Creation Time : Tue Feb 4 00:33:56 2014 > Creation Time : Tue Feb 4 00:38:19 2014 > > to be precise. > > Your only real chance is to find out the real geometry of the > array before all the problem happened, and create it properly... > It might be worth checking sda sdb and sdc (with out partitions) > as well as sdd1 sde1 sdf1 sdg1 sdi1 to see if there is anything there. > > But if you have backups or some other way to regenerate the data ...... > > 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