On Fri, Jan 29, 2010 at 4:23 AM, Neil Brown <neilb@xxxxxxx> wrote: > On Sun, 24 Jan 2010 19:49:31 -0800 > Michael Evans <mjevans1983@xxxxxxxxx> wrote: > >> mdX : active raid5 sdd1[8](S) sdb1[7](S) sdf8[0] sdl8[4] sdk2[5] >> sdc1[6] sdj6[3] sdi8[1] >> Y blocks super 1.1 level 5, 128k chunk, algorithm 2 [6/6] [UUUUUU] >> >> # mdadm --grow /dev/mdX --level=6 --raid-devices=8 >> --backup-file=/root/mdX.backupfile >> >> mdX : active raid6 sdd1[8] sdb1[7] sdf8[0] sdl8[4] sdk2[5] sdc1[6] >> sdj6[3] sdi8[1] >> Y blocks super 1.1 level 6, 128k chunk, algorithm 18 [8/9] [UUUUUU_U] >> [>....................] reshape = 0.0% (33920/484971520) >> finish=952.6min speed=8480K/sec >> >> !!! mdadm 3.1.1 I wanted an 8 device raid-6; Why do you show 9? > > That is weird isn't it. It is showing that 8 devices are in the array, of > which 9 are working. That cannot be right. > More worrying is that the second last device claim to not be present, which > doesn't seem right. > > >> >> What is it showing me now??? >> >> blocks super 1.1 level 6, 128k chunk, algorithm 2 [8/10] [UUUUUUUU] >> > > So now of the 8 devices, 10 are working!! At least all are present. > > >> ... Did it actually do what I want but just show me the wrong result >> with kernel 2.6.32-gentoo-r2 > > Some simple testing suggests it did do what you want, but reported something > silly in /proc/mdstat. > > I'll see if I can work out what is happening. > > Thanks for the report. > > NeilBrown > > As a follow-up: * Looking at the device via mdadm --detail /dev/mdX (while still invalid in /proc/mdstat) showed the correct information. * When I stopped and re-started the array the information in /proc/mdstat was valid. -- 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
