On Dec 8, 2011, at 12:59 PM, NeilBrown wrote: > On Thu, 8 Dec 2011 12:39:10 -0800 Eli Morris <ermorris@xxxxxxxx> wrote: > >> > >> >> and here is the verbose assemble output: >> >> [root@stratus log]# mdadm --verbose --assemble /dev/md5 --force /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 /dev/sdg1 /dev/sdh1 /dev/sdi1 /dev/sdj1 /dev/sdk1 /dev/sdl1 /dev/sdm1 /dev/sdn1 /dev/sdo1 >> mdadm: looking for devices for /dev/md5 >> mdadm: /dev/sda1 is identified as a member of /dev/md5, slot 0. >> mdadm: /dev/sdb1 is identified as a member of /dev/md5, slot -1. >> mdadm: /dev/sdc1 is identified as a member of /dev/md5, slot 2. >> mdadm: /dev/sdd1 is identified as a member of /dev/md5, slot 3. >> mdadm: /dev/sde1 is identified as a member of /dev/md5, slot 4. >> mdadm: /dev/sdf1 is identified as a member of /dev/md5, slot 5. >> mdadm: /dev/sdg1 is identified as a member of /dev/md5, slot 6. >> mdadm: /dev/sdh1 is identified as a member of /dev/md5, slot 7. >> mdadm: /dev/sdi1 is identified as a member of /dev/md5, slot -1. >> mdadm: /dev/sdj1 is identified as a member of /dev/md5, slot 9. >> mdadm: /dev/sdk1 is identified as a member of /dev/md5, slot 10. >> mdadm: /dev/sdl1 is identified as a member of /dev/md5, slot 11. >> mdadm: /dev/sdm1 is identified as a member of /dev/md5, slot 12. >> mdadm: /dev/sdn1 is identified as a member of /dev/md5, slot 13. >> mdadm: /dev/sdo1 is identified as a member of /dev/md5, slot -1. >> mdadm: no uptodate device for slot 1 of /dev/md5 >> mdadm: added /dev/sdc1 to /dev/md5 as 2 >> mdadm: added /dev/sdd1 to /dev/md5 as 3 >> mdadm: added /dev/sde1 to /dev/md5 as 4 >> mdadm: added /dev/sdf1 to /dev/md5 as 5 >> mdadm: added /dev/sdg1 to /dev/md5 as 6 >> mdadm: added /dev/sdh1 to /dev/md5 as 7 >> mdadm: no uptodate device for slot 8 of /dev/md5 >> mdadm: added /dev/sdj1 to /dev/md5 as 9 >> mdadm: added /dev/sdk1 to /dev/md5 as 10 >> mdadm: added /dev/sdl1 to /dev/md5 as 11 >> mdadm: added /dev/sdm1 to /dev/md5 as 12 >> mdadm: added /dev/sdn1 to /dev/md5 as 13 >> mdadm: no uptodate device for slot 14 of /dev/md5 >> mdadm: no uptodate device for slot 15 of /dev/md5 >> mdadm: added /dev/sdb1 to /dev/md5 as -1 >> mdadm: added /dev/sdi1 to /dev/md5 as -1 >> mdadm: failed to add /dev/sdo1 to /dev/md5: Device or resource busy >> mdadm: added /dev/sda1 to /dev/md5 as 0 >> mdadm: /dev/md5 assembled from 12 drives and 2 spares - not enough to start the array. >> >> > > Thank. > > I know what the 'busy' thing is now. > sdo1 appears the be the 'same' as some other device in some way. > > Also it looks like you might have turned some drives into spares > unintentionally, though I'm not sure > > Could you pleas send "mdadm --examine" output for all of these drives and > I'll have a look. > > Thanks, > NeilBrown > > > Thanks Neil. I wasn't sure if you wanted the output of all the drives or just the 'removed' ones, so here is the output for all the drives in the array. Just FYI, I don't know what I could have done to make these spares. Between when things worked fine and when they did not, I did not make any hardware or configuration changes to the array. Thanks! Eli [root@stratus log]# mdadm --examine /dev/sda1 /dev/sda1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 2f2219e1:52ba8e9f:59a99614:19023955 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 9d39863 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 0 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdb1 /dev/sdb1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 4457f369:e449cbd3:b1d00987:d0b3ec45 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 2a11360a - correct Events : 0 Layout : left-symmetric Chunk Size : 512K Device Role : spare Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdc1 /dev/sdc1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 03b89c44:e2db0b0a:7fea4aa4:6ac80958 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 6a59573f - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 2 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdd1 /dev/sdd1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 26be9b16:d2c39c72:498f3873:d8e60059 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 74ce088b - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 3 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sde1 /dev/sde1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 5b3c19ab:034cd1f3:708cf5ca:a3be4093 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 1c7ce3e6 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 4 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdf1 /dev/sdf1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 0c48ca56:414f4d53:21da2d1a:7d519272 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 5633d35f - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 5 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdg1 /dev/sdg1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : f6e4c4f9:4b00903e:e8ccf189:f345287c Update Time : Mon Dec 5 12:52:46 2011 Checksum : 5dcb0892 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 6 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdh1 /dev/sdh1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 793be893:3192ae21:57f59ea7:97f76b4f Update Time : Mon Dec 5 12:52:46 2011 Checksum : cbfdcb0e - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 7 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdi1 /dev/sdi1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 1cad41bf:75b756e2:71a83b96:cc3bf444 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 9c24592f - correct Events : 0 Layout : left-symmetric Chunk Size : 512K Device Role : spare Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdj1 /dev/sdj1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 74a09868:6978117b:8f2c4e22:f0e30ab0 Update Time : Mon Dec 5 12:52:46 2011 Checksum : d55f39d4 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 9 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdk1 /dev/sdk1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 88ec1371:4cd85c1b:62f5deaa:2821bc7b Update Time : Mon Dec 5 12:52:46 2011 Checksum : d267ebd7 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 10 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdl1 /dev/sdl1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 9a009907:d9ff6097:4ac84cbf:8726797f Update Time : Mon Dec 5 12:52:46 2011 Checksum : fd1bffbe - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 11 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdm1 /dev/sdm1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 481d50b4:65352be3:f65d8152:69e11c40 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 4975a288 - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 12 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdn1 /dev/sdn1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 3898edca:756c1f76:b33a66a0:a2dcce69 Update Time : Mon Dec 5 12:52:46 2011 Checksum : 6a9e2c7f - correct Events : 32 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 13 Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdo1 /dev/sdo1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : a31ac4c9:a37eb6e8:97aa7298:b3b0bf8d Update Time : Mon Dec 5 12:52:46 2011 Checksum : f80904f1 - correct Events : 0 Layout : left-symmetric Chunk Size : 512K Device Role : spare Array State : A.AAAAAA.AAAAA.. ('A' == active, '.' == missing) [root@stratus log]# mdadm --examine /dev/sdp1 /dev/sdp1: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 3189ca06:ccf973d0:7ef41366:98a75a32 Name : stratus.pmc.ucsc.edu:5 (local to host stratus.pmc.ucsc.edu) Creation Time : Wed Oct 12 16:32:41 2011 Raid Level : raid5 Raid Devices : 16 Avail Dev Size : 3907025039 (1863.01 GiB 2000.40 GB) Array Size : 58605358080 (27945.21 GiB 30005.94 GB) Used Dev Size : 3907023872 (1863.01 GiB 2000.40 GB) Data Offset : 2048 sectors Super Offset : 8 sectors State : clean Device UUID : 66e0b547:26c72e70:a6756af6:eccaef5a Update Time : Mon Dec 5 12:52:46 2011 Checksum : 289af87f - correct Events : 0 Layout : left-symmetric Chunk Size : 512K Device Role : spare Array State : A.AAAAAA.AAAAA.. 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