Hi Neil, Thanks. FYI, I've cloned your git repo and compiled and tried using your code. Unfortunately everything looks the same as below (exactly same output, exactly same dmesg - still wants to kick non-fresh sdc from the array at assemble). Cheers Rich On Tue, Feb 7, 2012 at 2:10 PM, NeilBrown <neilb@xxxxxxx> wrote: > On Tue, 7 Feb 2012 13:39:47 +1100 NeilBrown <neilb@xxxxxxx> wrote: > >> > I tried to assembe the array, to see if it would continue the reshape: >> > >> > root@raven:/# mdadm -Avv --backup-file=/usb/md0.backup /dev/md0 >> > /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sdf1 /dev/sdg1 >> > >> > Unfortunately mdadm had decided that the backup-file was out of date >> > (timestamps didn't match) and was erroring with: Failed to restore >> > critical section for reshape, sorry.. >> > >> > Chances are things were in such a mess that backup file wasn't going >> > to be used anyway, so I blocked the timestamp check with: export >> > MDADM_GROW_ALLOW_OLD=1 >> > >> > That allowed me to assemble the array, but not run it as there were >> > not enough disks to start it. >> >> You probably just need to add "--force" to the assemble line. >> So stop the array (mdamd -S /dev/md0) and assemble again with --force as well >> as the other options.... or maybe don't. >> >> I just tested that and I didn't do what it should. I've hacked the code a >> bit and can see what the problem is and think I can fix it. >> >> So leave it a bit. I'll let you know when you should grab my latest code >> and try that. > > Ok, that should work.. > If you: > > git clone git://neil.brown.name/mdadm > cd mdadm > make > export MDADM_GROW_ALLOW_OLD=1 > ./mdadm -Avv --backup-file=/usb/md0.backup /dev/md0 ..list.of.devices.. --force > > > it should restart the grow. Once device will be left failed. If you think > it is usable then when the grow completes you can add it back in. > > If you get another failure it will die again and you'll have to restart it. > > If you get a persistent failure, you might be out of luck. > > Please let me know how it goes. > > 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
