From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tyler Subject: Re: Raid5 Failure Date: Sun, 17 Jul 2005 19:10:37 -0700 Message-ID: <42DB0F9D.6040904@dtbb.net> References: <009401c58ae6$65b57870$c200a8c0@NCNF5131FTH><17114.54800.132155.142544@cse.unsw.edu.au><00e101c58b25$6f5c06c0$c200a8c0@NCNF5131FTH><17114.62108.319878.983091@cse.unsw.edu.au><010701c58b32$ee423830$c200a8c0@NCNF5131FTH><17115.149.130115.176372@cse.unsw.edu.au><001601c58b37$620c69d0$c200a8c0@NCNF5131FTH> <17115.1749.370942.838069@cse.unsw.edu.au> <004b01c58b3a$8e26f910$c200a8c0@NCNF5131FTH> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <004b01c58b3a$8e26f910$c200a8c0@NCNF5131FTH> Sender: linux-raid-owner@vger.kernel.org To: "David M. Strang" Cc: Neil Brown , linux-raid@vger.kernel.org List-Id: linux-raid.ids If you cat /proc/mdstat, it should show the array resyncing... when its done, it will put the drive back as device 26. Tyler. David M. Strang wrote: > Neil -- > > That worked, the device has been added to the array. Now, I think the > next problem is my own ignorance. > > -(root@abyss)-(/)- # mdadm --detail /dev/md0 > /dev/md0: > Version : 01.00.01 > Creation Time : Wed Dec 31 19:00:00 1969 > Raid Level : raid5 > Array Size : 1935556992 (1845.89 GiB 1982.01 GB) > Device Size : 71687296 (68.37 GiB 73.41 GB) > Raid Devices : 28 > Total Devices : 28 > Preferred Minor : 0 > Persistence : Superblock is persistent > > Update Time : Sun Jul 17 17:32:12 2005 > State : clean, degraded > Active Devices : 27 > Working Devices : 28 > Failed Devices : 0 > Spare Devices : 1 > > Layout : left-asymmetric > Chunk Size : 128K > > UUID : 4e2b6b0a8e:92e91c0c:018a4bf0:9bb74d > Events : 176939 > > Number Major Minor RaidDevice State > 0 8 0 0 active sync /dev/evms/.nodes/sda > 1 8 16 1 active sync /dev/evms/.nodes/sdb > 2 8 32 2 active sync /dev/evms/.nodes/sdc > 3 8 48 3 active sync /dev/evms/.nodes/sdd > 4 8 64 4 active sync /dev/evms/.nodes/sde > 5 8 80 5 active sync /dev/evms/.nodes/sdf > 6 8 96 6 active sync /dev/evms/.nodes/sdg > 7 8 112 7 active sync /dev/evms/.nodes/sdh > 8 8 128 8 active sync /dev/evms/.nodes/sdi > 9 8 144 9 active sync /dev/evms/.nodes/sdj > 10 8 160 10 active sync /dev/evms/.nodes/sdk > 11 8 176 11 active sync /dev/evms/.nodes/sdl > 12 8 192 12 active sync /dev/evms/.nodes/sdm > 13 8 208 13 active sync /dev/evms/.nodes/sdn > 14 8 224 14 active sync /dev/evms/.nodes/sdo > 15 8 240 15 active sync /dev/evms/.nodes/sdp > 16 65 0 16 active sync /dev/evms/.nodes/sdq > 17 65 16 17 active sync /dev/evms/.nodes/sdr > 18 65 32 18 active sync /dev/evms/.nodes/sds > 19 65 48 19 active sync /dev/evms/.nodes/sdt > 20 65 64 20 active sync /dev/evms/.nodes/sdu > 21 65 80 21 active sync /dev/evms/.nodes/sdv > 22 65 96 22 active sync /dev/evms/.nodes/sdw > 23 65 112 23 active sync /dev/evms/.nodes/sdx > 24 65 128 24 active sync /dev/evms/.nodes/sdy > 25 65 144 25 active sync /dev/evms/.nodes/sdz > 26 0 0 - removed > 27 65 176 27 active sync > /dev/evms/.nodes/sdab > > 28 65 160 - spare /dev/evms/.nodes/sdaa > > > I've got 28 devices, 1 spare, 27 active. I'm still running as clean, > degraded. > > What do I do next? What I wanted to do was to put /dev/sdaa back in as > device 26, but now it's device 28 - and flagged as spare. How do I > make it active in the array again? > > -- David M. Strang > > > ----- Original Message ----- From: Neil Brown > To: David M. Strang > Cc: linux-raid@vger.kernel.org > Sent: Sunday, July 17, 2005 9:33 PM > Subject: Re: Raid5 Failure > > Ahhhh... I cannot read my own code, that is the problem!! > > This patch should fix it. > > Thanks for persisting. > > NeilBrown > > Signed-off-by: Neil Brown > > ### Diffstat output > ./Manage.c | 7 ++----- > 1 files changed, 2 insertions(+), 5 deletions(-) > > diff ./Manage.c~current~ ./Manage.c > --- ./Manage.c~current~ 2005-07-07 09:19:53.000000000 +1000 > +++ ./Manage.c 2005-07-18 11:31:57.000000000 +1000 > @@ -204,11 +204,8 @@ int Manage_subdevs(char *devname, int fd > return 1; > } > close(tfd); > -#if 0 > - if (array.major_version == 0) { > -#else > - if (md_get_version(fd)%100 < 2) { > -#endif > + if (array.major_version == 0 && > + md_get_version(fd)%100 < 2) { > if (ioctl(fd, HOT_ADD_DISK, > (unsigned long)stb.st_rdev)==0) { > fprintf(stderr, Name ": hot added %s\n", > - > - > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >