Hello NeilBrown, thank you really very much. You saved my day. Am Thu, 16 Jun 2011 10:54:23 +1000 NeilBrown <neilb@xxxxxxx> schrieb: > On Wed, 15 Jun 2011 12:10:26 +0200 Lars TÃuber <taeuber@xxxxxxx> wrote: > > > Hi there, > > > > is it possible to mark a nearly completly synced device as active in sync? > > > > There was failing a device shortly before a spare drive was completely > > synced. I want to get the directory structure from the device. > > > > md3 : active raid6 sdz[16] sdaf[13] sds[0] sdac[10] sdah[15] sdag[14] sdae > > [12] sdad [11](F) sdab[9] sdaa[17](F) sdy[6] sdx[5] sdw[4] sdv[3] sdu[2] > > sdt[1] 27349202944 blocks level 6, 64k chunk, algorithm 2 [16/13] > > [UUUUUUU__UU_UUUU] [===================>.] recovery = 98.3% > > (1921986020/1953514496) finish=25.9min speed=20244K/sec > > > > /dev/sdz was the device that was inserted and is now marked as spare. Is > > it possible to mark sdz as active and in sync? > > Not really.... and should you mark it as the in-sync member number 7, 8, or > 11 ?? I can reconstruct the member number of sdz from the previous failure mails from mdadm. What a nice feature! > > > > Is there any chance to get data from this array? > > Your best bet is to try to 'create' the array again using '--assume-clean' > and putting the devices that you thing are working in the correct place. > e.g. something like: > > mdadm -S /dev/md3 > mdadm -C /dev/md3 --metadata=0.90 --level=6 --algorithm=2 --chunk=64 \ > --raid-devices=16 --assume-clean \ > /dev/sds /dev/sdt /dev/sdu /dev/sdv \ > /dev/sdw /dev/sdx /dev/sdy /dev/sdz \ > missing /dev/sdab /dev/sdac missing \ > /dev/sdae /dev/sdaf /dev/sdag /dev/sdah This was the very right command line except for the algorithm option. This is not available in my version. > Then "fsck -n /dev/md3" and see if it looks reasonably OK. > If it doesn't, try placing /dev/sdz in place of a different 'missing'. > > Of course you should double check the order of devices that I have given > here, and all the other details. Of course! > NeilBrown Thanks again for your help and your great tool! Lars -- 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
