* Problem with RAID-5 not adding disks [not found] <53CEE0E4.4070906@gmail.com> @ 2014-07-22 22:11 ` Theophanis Kontogiannis 2014-07-23 0:10 ` Roger Heflin 0 siblings, 1 reply; 8+ messages in thread From: Theophanis Kontogiannis @ 2014-07-22 22:11 UTC (permalink / raw) To: linux-raid Dear List. Hello. I have the following problem with my CEntOS 6.5 RAID-5 Array of five disks. At some point in time I added the fifth disk, however I do not remember if I added it as a spare or to go up to RAID-6. The power and faulty UPS caught me so my RAID-5 has failed (alongside with the on board controller :) ) After replacing the MB, I am in the following situation: /dev/md0: Version : 1.2 Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) Raid Devices : 5 Total Devices : 2 Persistence : Superblock is persistent Update Time : Sat Jul 12 22:11:39 2014 State : active, FAILED, Not Started Active Devices : 2 Working Devices : 2 Failed Devices : 0 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K Name : tweety.example.com:0 (local to host tweety.example.com) UUID : 953836cd:23314476:5db06922:c886893d Events : 16855 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 32 1 active sync /dev/sdc 2 0 0 2 removed 4 8 64 3 active sync /dev/sde 4 0 0 4 removed Every effort to add at least one more disk ends up in error: [root ~]# mdadm /dev/md0 --re-add /dev/sdd mdadm: --re-add for /dev/sdd to /dev/md0 is not possible I also made sure that the devices are in the correct physical order. mdadm --examine /dev/sd[b-f] /dev/sdb: Magic : a92b4efc Version : 1.2 Feature Map : 0x2 Array UUID : 953836cd:23314476:5db06922:c886893d Name : tweety.example.com:0 (local to host tweety.example.com) Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Raid Devices : 5 Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) Array Size : 3906521088 (3725.55 GiB 4000.28 GB) Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) Data Offset : 262144 sectors Super Offset : 8 sectors Recovery Offset : 0 sectors State : active Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 Update Time : Sat Jul 12 21:32:42 2014 Checksum : 31569c40 - correct Events : 16845 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 0 Array State : AAAAA ('A' == active, '.' == missing) /dev/sdc: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 953836cd:23314476:5db06922:c886893d Name : tweety.example.com:0 (local to host tweety.example.com) Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Raid Devices : 5 Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) Array Size : 3906521088 (3725.55 GiB 4000.28 GB) Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) Data Offset : 262144 sectors Super Offset : 8 sectors State : active Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 Update Time : Sat Jul 12 22:11:39 2014 Checksum : 55e8716a - correct Events : 16855 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 1 Array State : .AAAA ('A' == active, '.' == missing) /dev/sdd: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 953836cd:23314476:5db06922:c886893d Name : tweety.example.com:0 (local to host tweety.example.com) Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Raid Devices : 5 Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) Array Size : 3906521088 (3725.55 GiB 4000.28 GB) Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) Data Offset : 262144 sectors Super Offset : 8 sectors State : active Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba Update Time : Sat Jul 12 21:32:42 2014 Checksum : b19f455b - correct Events : 16855 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 2 Array State : AAAAA ('A' == active, '.' == missing) /dev/sde: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 953836cd:23314476:5db06922:c886893d Name : tweety.example.com:0 (local to host tweety.example.com) Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Raid Devices : 5 Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) Array Size : 3906521088 (3725.55 GiB 4000.28 GB) Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) Data Offset : 262144 sectors Super Offset : 8 sectors State : active Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c Update Time : Sat Jul 12 22:11:39 2014 Checksum : f80197e3 - correct Events : 16855 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 3 Array State : .A.AA ('A' == active, '.' == missing) /dev/sdf: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 953836cd:23314476:5db06922:c886893d Name : tweety.example.com:0 (local to host tweety.example.com) Creation Time : Fri Feb 21 18:06:31 2014 Raid Level : raid5 Raid Devices : 5 Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) Array Size : 3906521088 (3725.55 GiB 4000.28 GB) Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) Data Offset : 262144 sectors Super Offset : 8 sectors State : clean Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b Update Time : Sat Jul 12 22:11:39 2014 Checksum : cf0bbec1 - correct Events : 16855 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 4 Array State : .A.AA ('A' == active, '.' == missing) Any chance to revive this array? -- Kind Regards, Theophanis Kontogiannis ΜΦΧ ΘΚ -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-22 22:11 ` Problem with RAID-5 not adding disks Theophanis Kontogiannis @ 2014-07-23 0:10 ` Roger Heflin 2014-07-23 17:58 ` Theophanis Kontogiannis 0 siblings, 1 reply; 8+ messages in thread From: Roger Heflin @ 2014-07-23 0:10 UTC (permalink / raw) To: Theophanis Kontogiannis; +Cc: Linux RAID mdadm --stop /dev/mdXX stop mdadm --assemble --force /dev/mdXX <list all devices good or bad that were previously in the array> The assemble with force should make it turn it on with enough disks. Then re-add the remaining. I have had to do this a number of times when a subset of my sata ports acted up. On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis <tkonto@gmail.com> wrote: > > Dear List. > > Hello. > > I have the following problem with my CEntOS 6.5 RAID-5 > > Array of five disks. > > At some point in time I added the fifth disk, however I do not remember > if I added it as a spare or to go up to RAID-6. > > The power and faulty UPS caught me so my RAID-5 has failed (alongside > with the on board controller :) ) > > After replacing the MB, I am in the following situation: > > /dev/md0: > Version : 1.2 > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) > Raid Devices : 5 > Total Devices : 2 > Persistence : Superblock is persistent > > Update Time : Sat Jul 12 22:11:39 2014 > State : active, FAILED, Not Started > Active Devices : 2 > Working Devices : 2 > Failed Devices : 0 > Spare Devices : 0 > > Layout : left-symmetric > Chunk Size : 512K > > Name : tweety.example.com:0 (local to host > tweety.example.com) > UUID : 953836cd:23314476:5db06922:c886893d > Events : 16855 > > Number Major Minor RaidDevice State > 0 0 0 0 removed > 1 8 32 1 active sync /dev/sdc > 2 0 0 2 removed > 4 8 64 3 active sync /dev/sde > 4 0 0 4 removed > > > > Every effort to add at least one more disk ends up in error: > > [root ~]# mdadm /dev/md0 --re-add /dev/sdd > mdadm: --re-add for /dev/sdd to /dev/md0 is not possible > > I also made sure that the devices are in the correct physical order. > > > mdadm --examine /dev/sd[b-f] > > > /dev/sdb: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x2 > Array UUID : 953836cd:23314476:5db06922:c886893d > Name : tweety.example.com:0 (local to host > tweety.example.com) > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Raid Devices : 5 > > Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) > Array Size : 3906521088 (3725.55 GiB 4000.28 GB) > Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) > Data Offset : 262144 sectors > Super Offset : 8 sectors > Recovery Offset : 0 sectors > State : active > Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 > > Update Time : Sat Jul 12 21:32:42 2014 > Checksum : 31569c40 - correct > Events : 16845 > > Layout : left-symmetric > Chunk Size : 512K > > Device Role : Active device 0 > Array State : AAAAA ('A' == active, '.' == missing) > /dev/sdc: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x0 > Array UUID : 953836cd:23314476:5db06922:c886893d > Name : tweety.example.com:0 (local to host > tweety.example.com) > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Raid Devices : 5 > > Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) > Array Size : 3906521088 (3725.55 GiB 4000.28 GB) > Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) > Data Offset : 262144 sectors > Super Offset : 8 sectors > State : active > Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 > > Update Time : Sat Jul 12 22:11:39 2014 > Checksum : 55e8716a - correct > Events : 16855 > > Layout : left-symmetric > Chunk Size : 512K > > Device Role : Active device 1 > Array State : .AAAA ('A' == active, '.' == missing) > /dev/sdd: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x0 > Array UUID : 953836cd:23314476:5db06922:c886893d > Name : tweety.example.com:0 (local to host > tweety.example.com) > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Raid Devices : 5 > > Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) > Array Size : 3906521088 (3725.55 GiB 4000.28 GB) > Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) > Data Offset : 262144 sectors > Super Offset : 8 sectors > State : active > Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba > > Update Time : Sat Jul 12 21:32:42 2014 > Checksum : b19f455b - correct > Events : 16855 > > Layout : left-symmetric > Chunk Size : 512K > > Device Role : Active device 2 > Array State : AAAAA ('A' == active, '.' == missing) > /dev/sde: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x0 > Array UUID : 953836cd:23314476:5db06922:c886893d > Name : tweety.example.com:0 (local to host > tweety.example.com) > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Raid Devices : 5 > > Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) > Array Size : 3906521088 (3725.55 GiB 4000.28 GB) > Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) > Data Offset : 262144 sectors > Super Offset : 8 sectors > State : active > Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c > > Update Time : Sat Jul 12 22:11:39 2014 > Checksum : f80197e3 - correct > Events : 16855 > > Layout : left-symmetric > Chunk Size : 512K > > Device Role : Active device 3 > Array State : .A.AA ('A' == active, '.' == missing) > /dev/sdf: > Magic : a92b4efc > Version : 1.2 > Feature Map : 0x0 > Array UUID : 953836cd:23314476:5db06922:c886893d > Name : tweety.example.com:0 (local to host > tweety.example.com) > Creation Time : Fri Feb 21 18:06:31 2014 > Raid Level : raid5 > Raid Devices : 5 > > Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) > Array Size : 3906521088 (3725.55 GiB 4000.28 GB) > Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) > Data Offset : 262144 sectors > Super Offset : 8 sectors > State : clean > Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b > > Update Time : Sat Jul 12 22:11:39 2014 > Checksum : cf0bbec1 - correct > Events : 16855 > > Layout : left-symmetric > Chunk Size : 512K > > Device Role : Active device 4 > Array State : .A.AA ('A' == active, '.' == missing) > > > Any chance to revive this array? > > > -- > > Kind Regards, > Theophanis Kontogiannis > > ΜΦΧ > ΘΚ > > > > -- > 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 -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-23 0:10 ` Roger Heflin @ 2014-07-23 17:58 ` Theophanis Kontogiannis 2014-07-24 0:06 ` Roger Heflin 0 siblings, 1 reply; 8+ messages in thread From: Theophanis Kontogiannis @ 2014-07-23 17:58 UTC (permalink / raw) To: Roger Heflin; +Cc: Linux RAID Hi Roger, Thank you for the info. Results: [root ~#] mdadm --assemble --force /dev/md0 /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf mdadm: Marking array /dev/md0 as 'clean' mdadm: failed to add /dev/sdd to /dev/md0: Invalid argument mdadm: failed to add /dev/sdf to /dev/md0: Invalid argument mdadm: failed to RUN_ARRAY /dev/md0: Input/output error [root ~#] md: sdd does not have a valid v1.2 superblock, not importing! md: md_import_device returned -22 md: bind<sde> md: sdf does not have a valid v1.2 superblock, not importing! md: md_import_device returned -22 md: bind<sdc> md: kicking non-fresh sdb from array! md: unbind<sdb> md: export_rdev(sdb) bio: create slab <bio-1> at 1 md/raid:md0: device sdc operational as raid disk 1 md/raid:md0: device sde operational as raid disk 3 md/raid:md0: allocated 5366kB md/raid:md0: not enough operational devices (3/5 failed) RAID conf printout: --- level:5 rd:5 wd:2 disk 1, o:1, dev:sdc disk 3, o:1, dev:sde md/raid:md0: failed to run raid set. md: pers->run() failed ... [root@tweety ~]# cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md0 : inactive sdc[1] sde[4] 1953263024 blocks super 1.2 unused devices: <none> Anything else I could do? Kind Regards, Theophanis Kontogiannis ΜΦΧ ΘΚ On 23/07/14 03:10, Roger Heflin wrote: > mdadm --stop /dev/mdXX stop > mdadm --assemble --force /dev/mdXX <list all devices good or bad that > were previously in the array> > > The assemble with force should make it turn it on with enough disks. > Then re-add the remaining. > > I have had to do this a number of times when a subset of my sata ports acted up. > > On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis > <tkonto@gmail.com> wrote: >> Dear List. >> >> Hello. >> >> I have the following problem with my CEntOS 6.5 RAID-5 >> >> Array of five disks. >> >> At some point in time I added the fifth disk, however I do not remember >> if I added it as a spare or to go up to RAID-6. >> >> The power and faulty UPS caught me so my RAID-5 has failed (alongside >> with the on board controller :) ) >> >> After replacing the MB, I am in the following situation: >> >> /dev/md0: >> Version : 1.2 >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) >> Raid Devices : 5 >> Total Devices : 2 >> Persistence : Superblock is persistent >> >> Update Time : Sat Jul 12 22:11:39 2014 >> State : active, FAILED, Not Started >> Active Devices : 2 >> Working Devices : 2 >> Failed Devices : 0 >> Spare Devices : 0 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> UUID : 953836cd:23314476:5db06922:c886893d >> Events : 16855 >> >> Number Major Minor RaidDevice State >> 0 0 0 0 removed >> 1 8 32 1 active sync /dev/sdc >> 2 0 0 2 removed >> 4 8 64 3 active sync /dev/sde >> 4 0 0 4 removed >> >> >> >> Every effort to add at least one more disk ends up in error: >> >> [root ~]# mdadm /dev/md0 --re-add /dev/sdd >> mdadm: --re-add for /dev/sdd to /dev/md0 is not possible >> >> I also made sure that the devices are in the correct physical order. >> >> >> mdadm --examine /dev/sd[b-f] >> >> >> /dev/sdb: >> Magic : a92b4efc >> Version : 1.2 >> Feature Map : 0x2 >> Array UUID : 953836cd:23314476:5db06922:c886893d >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Raid Devices : 5 >> >> Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) >> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >> Data Offset : 262144 sectors >> Super Offset : 8 sectors >> Recovery Offset : 0 sectors >> State : active >> Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 >> >> Update Time : Sat Jul 12 21:32:42 2014 >> Checksum : 31569c40 - correct >> Events : 16845 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Device Role : Active device 0 >> Array State : AAAAA ('A' == active, '.' == missing) >> /dev/sdc: >> Magic : a92b4efc >> Version : 1.2 >> Feature Map : 0x0 >> Array UUID : 953836cd:23314476:5db06922:c886893d >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Raid Devices : 5 >> >> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >> Data Offset : 262144 sectors >> Super Offset : 8 sectors >> State : active >> Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 >> >> Update Time : Sat Jul 12 22:11:39 2014 >> Checksum : 55e8716a - correct >> Events : 16855 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Device Role : Active device 1 >> Array State : .AAAA ('A' == active, '.' == missing) >> /dev/sdd: >> Magic : a92b4efc >> Version : 1.2 >> Feature Map : 0x0 >> Array UUID : 953836cd:23314476:5db06922:c886893d >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Raid Devices : 5 >> >> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >> Data Offset : 262144 sectors >> Super Offset : 8 sectors >> State : active >> Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba >> >> Update Time : Sat Jul 12 21:32:42 2014 >> Checksum : b19f455b - correct >> Events : 16855 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Device Role : Active device 2 >> Array State : AAAAA ('A' == active, '.' == missing) >> /dev/sde: >> Magic : a92b4efc >> Version : 1.2 >> Feature Map : 0x0 >> Array UUID : 953836cd:23314476:5db06922:c886893d >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Raid Devices : 5 >> >> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >> Data Offset : 262144 sectors >> Super Offset : 8 sectors >> State : active >> Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c >> >> Update Time : Sat Jul 12 22:11:39 2014 >> Checksum : f80197e3 - correct >> Events : 16855 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Device Role : Active device 3 >> Array State : .A.AA ('A' == active, '.' == missing) >> /dev/sdf: >> Magic : a92b4efc >> Version : 1.2 >> Feature Map : 0x0 >> Array UUID : 953836cd:23314476:5db06922:c886893d >> Name : tweety.example.com:0 (local to host >> tweety.example.com) >> Creation Time : Fri Feb 21 18:06:31 2014 >> Raid Level : raid5 >> Raid Devices : 5 >> >> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >> Data Offset : 262144 sectors >> Super Offset : 8 sectors >> State : clean >> Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b >> >> Update Time : Sat Jul 12 22:11:39 2014 >> Checksum : cf0bbec1 - correct >> Events : 16855 >> >> Layout : left-symmetric >> Chunk Size : 512K >> >> Device Role : Active device 4 >> Array State : .A.AA ('A' == active, '.' == missing) >> >> >> Any chance to revive this array? >> >> >> -- >> >> Kind Regards, >> Theophanis Kontogiannis >> >> ΜΦΧ >> ΘΚ >> >> >> >> -- >> 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 -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-23 17:58 ` Theophanis Kontogiannis @ 2014-07-24 0:06 ` Roger Heflin 2014-07-24 15:31 ` Theophanis Kontogiannis 2014-07-24 17:39 ` Theophanis Kontogiannis 0 siblings, 2 replies; 8+ messages in thread From: Roger Heflin @ 2014-07-24 0:06 UTC (permalink / raw) To: Theophanis Kontogiannis; +Cc: Linux RAID it shows one of the disks as not fresh (sdb) and it shows sdd and sdf as not being found with a valid superblock at all. You probably need to do some looking around and see if you can figure out where they are or what is going on. This may help you find them: mdadm --examine /dev/<device> you may need to repeat for any and all unused devices you find on the system and then fix whatever caused the disks to be missing or use the device it is now at. On Wed, Jul 23, 2014 at 12:58 PM, Theophanis Kontogiannis <tkonto@gmail.com> wrote: > Hi Roger, > > Thank you for the info. > > Results: > > [root ~#] mdadm --assemble --force /dev/md0 /dev/sdb /dev/sdc /dev/sdd > /dev/sde /dev/sdf > mdadm: Marking array /dev/md0 as 'clean' > mdadm: failed to add /dev/sdd to /dev/md0: Invalid argument > mdadm: failed to add /dev/sdf to /dev/md0: Invalid argument > mdadm: failed to RUN_ARRAY /dev/md0: Input/output error > [root ~#] > > md: sdd does not have a valid v1.2 superblock, not importing! > md: md_import_device returned -22 > md: bind<sde> > md: sdf does not have a valid v1.2 superblock, not importing! > md: md_import_device returned -22 > md: bind<sdc> > md: kicking non-fresh sdb from array! > md: unbind<sdb> > md: export_rdev(sdb) > bio: create slab <bio-1> at 1 > md/raid:md0: device sdc operational as raid disk 1 > md/raid:md0: device sde operational as raid disk 3 > md/raid:md0: allocated 5366kB > md/raid:md0: not enough operational devices (3/5 failed) > RAID conf printout: > --- level:5 rd:5 wd:2 > disk 1, o:1, dev:sdc > disk 3, o:1, dev:sde > md/raid:md0: failed to run raid set. > md: pers->run() failed ... > > > > [root@tweety ~]# cat /proc/mdstat > Personalities : [raid6] [raid5] [raid4] > md0 : inactive sdc[1] sde[4] > 1953263024 blocks super 1.2 > > unused devices: <none> > > > > Anything else I could do? > > > Kind Regards, > Theophanis Kontogiannis > > ΜΦΧ > ΘΚ > > On 23/07/14 03:10, Roger Heflin wrote: >> mdadm --stop /dev/mdXX stop >> mdadm --assemble --force /dev/mdXX <list all devices good or bad that >> were previously in the array> >> >> The assemble with force should make it turn it on with enough disks. >> Then re-add the remaining. >> >> I have had to do this a number of times when a subset of my sata ports acted up. >> >> On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis >> <tkonto@gmail.com> wrote: >>> Dear List. >>> >>> Hello. >>> >>> I have the following problem with my CEntOS 6.5 RAID-5 >>> >>> Array of five disks. >>> >>> At some point in time I added the fifth disk, however I do not remember >>> if I added it as a spare or to go up to RAID-6. >>> >>> The power and faulty UPS caught me so my RAID-5 has failed (alongside >>> with the on board controller :) ) >>> >>> After replacing the MB, I am in the following situation: >>> >>> /dev/md0: >>> Version : 1.2 >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) >>> Raid Devices : 5 >>> Total Devices : 2 >>> Persistence : Superblock is persistent >>> >>> Update Time : Sat Jul 12 22:11:39 2014 >>> State : active, FAILED, Not Started >>> Active Devices : 2 >>> Working Devices : 2 >>> Failed Devices : 0 >>> Spare Devices : 0 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> UUID : 953836cd:23314476:5db06922:c886893d >>> Events : 16855 >>> >>> Number Major Minor RaidDevice State >>> 0 0 0 0 removed >>> 1 8 32 1 active sync /dev/sdc >>> 2 0 0 2 removed >>> 4 8 64 3 active sync /dev/sde >>> 4 0 0 4 removed >>> >>> >>> >>> Every effort to add at least one more disk ends up in error: >>> >>> [root ~]# mdadm /dev/md0 --re-add /dev/sdd >>> mdadm: --re-add for /dev/sdd to /dev/md0 is not possible >>> >>> I also made sure that the devices are in the correct physical order. >>> >>> >>> mdadm --examine /dev/sd[b-f] >>> >>> >>> /dev/sdb: >>> Magic : a92b4efc >>> Version : 1.2 >>> Feature Map : 0x2 >>> Array UUID : 953836cd:23314476:5db06922:c886893d >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Raid Devices : 5 >>> >>> Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) >>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>> Data Offset : 262144 sectors >>> Super Offset : 8 sectors >>> Recovery Offset : 0 sectors >>> State : active >>> Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 >>> >>> Update Time : Sat Jul 12 21:32:42 2014 >>> Checksum : 31569c40 - correct >>> Events : 16845 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Device Role : Active device 0 >>> Array State : AAAAA ('A' == active, '.' == missing) >>> /dev/sdc: >>> Magic : a92b4efc >>> Version : 1.2 >>> Feature Map : 0x0 >>> Array UUID : 953836cd:23314476:5db06922:c886893d >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Raid Devices : 5 >>> >>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>> Data Offset : 262144 sectors >>> Super Offset : 8 sectors >>> State : active >>> Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 >>> >>> Update Time : Sat Jul 12 22:11:39 2014 >>> Checksum : 55e8716a - correct >>> Events : 16855 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Device Role : Active device 1 >>> Array State : .AAAA ('A' == active, '.' == missing) >>> /dev/sdd: >>> Magic : a92b4efc >>> Version : 1.2 >>> Feature Map : 0x0 >>> Array UUID : 953836cd:23314476:5db06922:c886893d >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Raid Devices : 5 >>> >>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>> Data Offset : 262144 sectors >>> Super Offset : 8 sectors >>> State : active >>> Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba >>> >>> Update Time : Sat Jul 12 21:32:42 2014 >>> Checksum : b19f455b - correct >>> Events : 16855 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Device Role : Active device 2 >>> Array State : AAAAA ('A' == active, '.' == missing) >>> /dev/sde: >>> Magic : a92b4efc >>> Version : 1.2 >>> Feature Map : 0x0 >>> Array UUID : 953836cd:23314476:5db06922:c886893d >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Raid Devices : 5 >>> >>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>> Data Offset : 262144 sectors >>> Super Offset : 8 sectors >>> State : active >>> Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c >>> >>> Update Time : Sat Jul 12 22:11:39 2014 >>> Checksum : f80197e3 - correct >>> Events : 16855 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Device Role : Active device 3 >>> Array State : .A.AA ('A' == active, '.' == missing) >>> /dev/sdf: >>> Magic : a92b4efc >>> Version : 1.2 >>> Feature Map : 0x0 >>> Array UUID : 953836cd:23314476:5db06922:c886893d >>> Name : tweety.example.com:0 (local to host >>> tweety.example.com) >>> Creation Time : Fri Feb 21 18:06:31 2014 >>> Raid Level : raid5 >>> Raid Devices : 5 >>> >>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>> Data Offset : 262144 sectors >>> Super Offset : 8 sectors >>> State : clean >>> Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b >>> >>> Update Time : Sat Jul 12 22:11:39 2014 >>> Checksum : cf0bbec1 - correct >>> Events : 16855 >>> >>> Layout : left-symmetric >>> Chunk Size : 512K >>> >>> Device Role : Active device 4 >>> Array State : .A.AA ('A' == active, '.' == missing) >>> >>> >>> Any chance to revive this array? >>> >>> >>> -- >>> >>> Kind Regards, >>> Theophanis Kontogiannis >>> >>> ΜΦΧ >>> ΘΚ >>> >>> >>> >>> -- >>> 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 > -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-24 0:06 ` Roger Heflin @ 2014-07-24 15:31 ` Theophanis Kontogiannis 2014-07-24 17:39 ` Theophanis Kontogiannis 1 sibling, 0 replies; 8+ messages in thread From: Theophanis Kontogiannis @ 2014-07-24 15:31 UTC (permalink / raw) To: Roger Heflin; +Cc: Linux RAID Hi Roger, Hi All, Apparently this is the reason I can not solve it out myself. According to the following all looks OK and all devices are in place, clean, with correct SB version and in the correct physical sequence (correct me if I am wrong): mdadm --examine /dev/sd[b-f]|grep Version Version : 1.2 Version : 1.2 Version : 1.2 Version : 1.2 Version : 1.2 mdadm --examine /dev/sd[b-f]|grep Role Device Role : Active device 0 Device Role : Active device 1 Device Role : Active device 2 Device Role : Active device 3 Device Role : Active device 4 mdadm --examine /dev/sd[b-f]|grep Event Events : 16845 Events : 16855 Events : 16855 Events : 16855 Events : 16855 mdadm --examine /dev/sd[b-f]|grep Update Update Time : Sat Jul 12 21:32:42 2014 Update Time : Sat Jul 12 22:11:39 2014 Update Time : Sat Jul 12 21:32:42 2014 Update Time : Sat Jul 12 22:11:39 2014 Update Time : Sat Jul 12 22:11:39 2014 However this is what confuses me and maybe is the reason of my problem. However I can not evaluate it: mdadm --examine /dev/sd[b-f]|grep State State : active Array State : AAAAA ('A' == active, '.' == missing) State : clean Array State : .AAAA ('A' == active, '.' == missing) State : active Array State : AAAAA ('A' == active, '.' == missing) State : active Array State : .A.AA ('A' == active, '.' == missing) State : clean Array State : .A.AA ('A' == active, '.' == missing) Any ideas? Kind Regards, Theophanis Kontogiannis ΜΦΧ ΘΚ On 24/07/14 03:06, Roger Heflin wrote: > it shows one of the disks as not fresh (sdb) and it shows sdd and sdf > as not being found with a valid superblock at all. > > You probably need to do some looking around and see if you can figure > out where they are or what is going on. > > This may help you find them: > mdadm --examine /dev/<device> > you may need to repeat for any and all unused devices you find on the > system and then fix whatever caused the disks to be missing or use the > device it is now at. > > On Wed, Jul 23, 2014 at 12:58 PM, Theophanis Kontogiannis > <tkonto@gmail.com> wrote: >> Hi Roger, >> >> Thank you for the info. >> >> Results: >> >> [root ~#] mdadm --assemble --force /dev/md0 /dev/sdb /dev/sdc /dev/sdd >> /dev/sde /dev/sdf >> mdadm: Marking array /dev/md0 as 'clean' >> mdadm: failed to add /dev/sdd to /dev/md0: Invalid argument >> mdadm: failed to add /dev/sdf to /dev/md0: Invalid argument >> mdadm: failed to RUN_ARRAY /dev/md0: Input/output error >> [root ~#] >> >> md: sdd does not have a valid v1.2 superblock, not importing! >> md: md_import_device returned -22 >> md: bind<sde> >> md: sdf does not have a valid v1.2 superblock, not importing! >> md: md_import_device returned -22 >> md: bind<sdc> >> md: kicking non-fresh sdb from array! >> md: unbind<sdb> >> md: export_rdev(sdb) >> bio: create slab <bio-1> at 1 >> md/raid:md0: device sdc operational as raid disk 1 >> md/raid:md0: device sde operational as raid disk 3 >> md/raid:md0: allocated 5366kB >> md/raid:md0: not enough operational devices (3/5 failed) >> RAID conf printout: >> --- level:5 rd:5 wd:2 >> disk 1, o:1, dev:sdc >> disk 3, o:1, dev:sde >> md/raid:md0: failed to run raid set. >> md: pers->run() failed ... >> >> >> >> [root@tweety ~]# cat /proc/mdstat >> Personalities : [raid6] [raid5] [raid4] >> md0 : inactive sdc[1] sde[4] >> 1953263024 blocks super 1.2 >> >> unused devices: <none> >> >> >> >> Anything else I could do? >> >> >> Kind Regards, >> Theophanis Kontogiannis >> >> ΜΦΧ >> ΘΚ >> >> On 23/07/14 03:10, Roger Heflin wrote: >>> mdadm --stop /dev/mdXX stop >>> mdadm --assemble --force /dev/mdXX <list all devices good or bad that >>> were previously in the array> >>> >>> The assemble with force should make it turn it on with enough disks. >>> Then re-add the remaining. >>> >>> I have had to do this a number of times when a subset of my sata ports acted up. >>> >>> On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis >>> <tkonto@gmail.com> wrote: >>>> Dear List. >>>> >>>> Hello. >>>> >>>> I have the following problem with my CEntOS 6.5 RAID-5 >>>> >>>> Array of five disks. >>>> >>>> At some point in time I added the fifth disk, however I do not remember >>>> if I added it as a spare or to go up to RAID-6. >>>> >>>> The power and faulty UPS caught me so my RAID-5 has failed (alongside >>>> with the on board controller :) ) >>>> >>>> After replacing the MB, I am in the following situation: >>>> >>>> /dev/md0: >>>> Version : 1.2 >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) >>>> Raid Devices : 5 >>>> Total Devices : 2 >>>> Persistence : Superblock is persistent >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> State : active, FAILED, Not Started >>>> Active Devices : 2 >>>> Working Devices : 2 >>>> Failed Devices : 0 >>>> Spare Devices : 0 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> UUID : 953836cd:23314476:5db06922:c886893d >>>> Events : 16855 >>>> >>>> Number Major Minor RaidDevice State >>>> 0 0 0 0 removed >>>> 1 8 32 1 active sync /dev/sdc >>>> 2 0 0 2 removed >>>> 4 8 64 3 active sync /dev/sde >>>> 4 0 0 4 removed >>>> >>>> >>>> >>>> Every effort to add at least one more disk ends up in error: >>>> >>>> [root ~]# mdadm /dev/md0 --re-add /dev/sdd >>>> mdadm: --re-add for /dev/sdd to /dev/md0 is not possible >>>> >>>> I also made sure that the devices are in the correct physical order. >>>> >>>> >>>> mdadm --examine /dev/sd[b-f] >>>> >>>> >>>> /dev/sdb: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x2 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> Recovery Offset : 0 sectors >>>> State : active >>>> Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 >>>> >>>> Update Time : Sat Jul 12 21:32:42 2014 >>>> Checksum : 31569c40 - correct >>>> Events : 16845 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 0 >>>> Array State : AAAAA ('A' == active, '.' == missing) >>>> /dev/sdc: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : 55e8716a - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 1 >>>> Array State : .AAAA ('A' == active, '.' == missing) >>>> /dev/sdd: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba >>>> >>>> Update Time : Sat Jul 12 21:32:42 2014 >>>> Checksum : b19f455b - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 2 >>>> Array State : AAAAA ('A' == active, '.' == missing) >>>> /dev/sde: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : f80197e3 - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 3 >>>> Array State : .A.AA ('A' == active, '.' == missing) >>>> /dev/sdf: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : clean >>>> Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : cf0bbec1 - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 4 >>>> Array State : .A.AA ('A' == active, '.' == missing) >>>> >>>> >>>> Any chance to revive this array? >>>> >>>> >>>> -- >>>> >>>> Kind Regards, >>>> Theophanis Kontogiannis >>>> >>>> ΜΦΧ >>>> ΘΚ >>>> >>>> >>>> >>>> -- >>>> 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 -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-24 0:06 ` Roger Heflin 2014-07-24 15:31 ` Theophanis Kontogiannis @ 2014-07-24 17:39 ` Theophanis Kontogiannis 2014-07-24 19:20 ` Roger Heflin 2014-07-24 19:50 ` Robin Hill 1 sibling, 2 replies; 8+ messages in thread From: Theophanis Kontogiannis @ 2014-07-24 17:39 UTC (permalink / raw) To: Roger Heflin; +Cc: Linux RAID Hi Roger, Hi List, With a high heart bit rate I tried this: mdadm --create /dev/md0 --assume-clean --level=5 --raid-devices=5 /dev/sdb /dev/sdc /dev/sde /dev/sdd missing IT WORKED! Now I have mounted my date back. BUT: 1. I have one failing disk according to SMART (that is /dev/sdc) 2. /dev/sdb and /dev/sdd have a little smaller size then the others: blockdev --getsz /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf 1953523055 1953525168 1953523055 1953525168 1953523055 The idea to re-create the array came from here: http://ubuntuforums.org/showthread.php?t=1736742&p=10708294#post10708294 Now I will replace the two different disks and will upgrade to RAID-6. Any hints what might have been the issue? As mentioned on the exactly previous post, all seamed to be in order with the array. Kind Regards, Theophanis Kontogiannis ΜΦΧ ΘΚ On 24/07/14 03:06, Roger Heflin wrote: > it shows one of the disks as not fresh (sdb) and it shows sdd and sdf > as not being found with a valid superblock at all. > > You probably need to do some looking around and see if you can figure > out where they are or what is going on. > > This may help you find them: > mdadm --examine /dev/<device> > you may need to repeat for any and all unused devices you find on the > system and then fix whatever caused the disks to be missing or use the > device it is now at. > > On Wed, Jul 23, 2014 at 12:58 PM, Theophanis Kontogiannis > <tkonto@gmail.com> wrote: >> Hi Roger, >> >> Thank you for the info. >> >> Results: >> >> [root ~#] mdadm --assemble --force /dev/md0 /dev/sdb /dev/sdc /dev/sdd >> /dev/sde /dev/sdf >> mdadm: Marking array /dev/md0 as 'clean' >> mdadm: failed to add /dev/sdd to /dev/md0: Invalid argument >> mdadm: failed to add /dev/sdf to /dev/md0: Invalid argument >> mdadm: failed to RUN_ARRAY /dev/md0: Input/output error >> [root ~#] >> >> md: sdd does not have a valid v1.2 superblock, not importing! >> md: md_import_device returned -22 >> md: bind<sde> >> md: sdf does not have a valid v1.2 superblock, not importing! >> md: md_import_device returned -22 >> md: bind<sdc> >> md: kicking non-fresh sdb from array! >> md: unbind<sdb> >> md: export_rdev(sdb) >> bio: create slab <bio-1> at 1 >> md/raid:md0: device sdc operational as raid disk 1 >> md/raid:md0: device sde operational as raid disk 3 >> md/raid:md0: allocated 5366kB >> md/raid:md0: not enough operational devices (3/5 failed) >> RAID conf printout: >> --- level:5 rd:5 wd:2 >> disk 1, o:1, dev:sdc >> disk 3, o:1, dev:sde >> md/raid:md0: failed to run raid set. >> md: pers->run() failed ... >> >> >> >> [root@tweety ~]# cat /proc/mdstat >> Personalities : [raid6] [raid5] [raid4] >> md0 : inactive sdc[1] sde[4] >> 1953263024 blocks super 1.2 >> >> unused devices: <none> >> >> >> >> Anything else I could do? >> >> >> Kind Regards, >> Theophanis Kontogiannis >> >> ΜΦΧ >> ΘΚ >> >> On 23/07/14 03:10, Roger Heflin wrote: >>> mdadm --stop /dev/mdXX stop >>> mdadm --assemble --force /dev/mdXX <list all devices good or bad that >>> were previously in the array> >>> >>> The assemble with force should make it turn it on with enough disks. >>> Then re-add the remaining. >>> >>> I have had to do this a number of times when a subset of my sata ports acted up. >>> >>> On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis >>> <tkonto@gmail.com> wrote: >>>> Dear List. >>>> >>>> Hello. >>>> >>>> I have the following problem with my CEntOS 6.5 RAID-5 >>>> >>>> Array of five disks. >>>> >>>> At some point in time I added the fifth disk, however I do not remember >>>> if I added it as a spare or to go up to RAID-6. >>>> >>>> The power and faulty UPS caught me so my RAID-5 has failed (alongside >>>> with the on board controller :) ) >>>> >>>> After replacing the MB, I am in the following situation: >>>> >>>> /dev/md0: >>>> Version : 1.2 >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) >>>> Raid Devices : 5 >>>> Total Devices : 2 >>>> Persistence : Superblock is persistent >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> State : active, FAILED, Not Started >>>> Active Devices : 2 >>>> Working Devices : 2 >>>> Failed Devices : 0 >>>> Spare Devices : 0 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> UUID : 953836cd:23314476:5db06922:c886893d >>>> Events : 16855 >>>> >>>> Number Major Minor RaidDevice State >>>> 0 0 0 0 removed >>>> 1 8 32 1 active sync /dev/sdc >>>> 2 0 0 2 removed >>>> 4 8 64 3 active sync /dev/sde >>>> 4 0 0 4 removed >>>> >>>> >>>> >>>> Every effort to add at least one more disk ends up in error: >>>> >>>> [root ~]# mdadm /dev/md0 --re-add /dev/sdd >>>> mdadm: --re-add for /dev/sdd to /dev/md0 is not possible >>>> >>>> I also made sure that the devices are in the correct physical order. >>>> >>>> >>>> mdadm --examine /dev/sd[b-f] >>>> >>>> >>>> /dev/sdb: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x2 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> Recovery Offset : 0 sectors >>>> State : active >>>> Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 >>>> >>>> Update Time : Sat Jul 12 21:32:42 2014 >>>> Checksum : 31569c40 - correct >>>> Events : 16845 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 0 >>>> Array State : AAAAA ('A' == active, '.' == missing) >>>> /dev/sdc: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : 55e8716a - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 1 >>>> Array State : .AAAA ('A' == active, '.' == missing) >>>> /dev/sdd: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba >>>> >>>> Update Time : Sat Jul 12 21:32:42 2014 >>>> Checksum : b19f455b - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 2 >>>> Array State : AAAAA ('A' == active, '.' == missing) >>>> /dev/sde: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : active >>>> Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : f80197e3 - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 3 >>>> Array State : .A.AA ('A' == active, '.' == missing) >>>> /dev/sdf: >>>> Magic : a92b4efc >>>> Version : 1.2 >>>> Feature Map : 0x0 >>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>> Name : tweety.example.com:0 (local to host >>>> tweety.example.com) >>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>> Raid Level : raid5 >>>> Raid Devices : 5 >>>> >>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>> Data Offset : 262144 sectors >>>> Super Offset : 8 sectors >>>> State : clean >>>> Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b >>>> >>>> Update Time : Sat Jul 12 22:11:39 2014 >>>> Checksum : cf0bbec1 - correct >>>> Events : 16855 >>>> >>>> Layout : left-symmetric >>>> Chunk Size : 512K >>>> >>>> Device Role : Active device 4 >>>> Array State : .A.AA ('A' == active, '.' == missing) >>>> >>>> >>>> Any chance to revive this array? >>>> >>>> >>>> -- >>>> >>>> Kind Regards, >>>> Theophanis Kontogiannis >>>> >>>> ΜΦΧ >>>> ΘΚ >>>> >>>> >>>> >>>> -- >>>> 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 -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-24 17:39 ` Theophanis Kontogiannis @ 2014-07-24 19:20 ` Roger Heflin 2014-07-24 19:50 ` Robin Hill 1 sibling, 0 replies; 8+ messages in thread From: Roger Heflin @ 2014-07-24 19:20 UTC (permalink / raw) To: Theophanis Kontogiannis; +Cc: Linux RAID I try to avoid the create as if wrong (order wise) things get risky. So far even when I have lost a number of disks the --force has worked for me (controller failure dropped 3 disks). One thing in the future would be to partition all of the devices, the 2 devices being a slightly different size may be what was causing it issues. With partitioning you should be able to setup all of the devices to appear to be the exact same size. On Thu, Jul 24, 2014 at 12:39 PM, Theophanis Kontogiannis <tkonto@gmail.com> wrote: > Hi Roger, Hi List, > > With a high heart bit rate I tried this: > > mdadm --create /dev/md0 --assume-clean --level=5 --raid-devices=5 /dev/sdb /dev/sdc /dev/sde /dev/sdd missing > > IT WORKED! > > Now I have mounted my date back. > > BUT: > > 1. I have one failing disk according to SMART (that is /dev/sdc) > > 2. /dev/sdb and /dev/sdd have a little smaller size then the others: > > blockdev --getsz /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf > 1953523055 > 1953525168 > 1953523055 > 1953525168 > 1953523055 > > The idea to re-create the array came from here: > > http://ubuntuforums.org/showthread.php?t=1736742&p=10708294#post10708294 > > Now I will replace the two different disks and will upgrade to RAID-6. > > Any hints what might have been the issue? > > As mentioned on the exactly previous post, all seamed to be in order > with the array. > > > Kind Regards, > Theophanis Kontogiannis > > ΜΦΧ > ΘΚ > > On 24/07/14 03:06, Roger Heflin wrote: >> it shows one of the disks as not fresh (sdb) and it shows sdd and sdf >> as not being found with a valid superblock at all. >> >> You probably need to do some looking around and see if you can figure >> out where they are or what is going on. >> >> This may help you find them: >> mdadm --examine /dev/<device> >> you may need to repeat for any and all unused devices you find on the >> system and then fix whatever caused the disks to be missing or use the >> device it is now at. >> >> On Wed, Jul 23, 2014 at 12:58 PM, Theophanis Kontogiannis >> <tkonto@gmail.com> wrote: >>> Hi Roger, >>> >>> Thank you for the info. >>> >>> Results: >>> >>> [root ~#] mdadm --assemble --force /dev/md0 /dev/sdb /dev/sdc /dev/sdd >>> /dev/sde /dev/sdf >>> mdadm: Marking array /dev/md0 as 'clean' >>> mdadm: failed to add /dev/sdd to /dev/md0: Invalid argument >>> mdadm: failed to add /dev/sdf to /dev/md0: Invalid argument >>> mdadm: failed to RUN_ARRAY /dev/md0: Input/output error >>> [root ~#] >>> >>> md: sdd does not have a valid v1.2 superblock, not importing! >>> md: md_import_device returned -22 >>> md: bind<sde> >>> md: sdf does not have a valid v1.2 superblock, not importing! >>> md: md_import_device returned -22 >>> md: bind<sdc> >>> md: kicking non-fresh sdb from array! >>> md: unbind<sdb> >>> md: export_rdev(sdb) >>> bio: create slab <bio-1> at 1 >>> md/raid:md0: device sdc operational as raid disk 1 >>> md/raid:md0: device sde operational as raid disk 3 >>> md/raid:md0: allocated 5366kB >>> md/raid:md0: not enough operational devices (3/5 failed) >>> RAID conf printout: >>> --- level:5 rd:5 wd:2 >>> disk 1, o:1, dev:sdc >>> disk 3, o:1, dev:sde >>> md/raid:md0: failed to run raid set. >>> md: pers->run() failed ... >>> >>> >>> >>> [root@tweety ~]# cat /proc/mdstat >>> Personalities : [raid6] [raid5] [raid4] >>> md0 : inactive sdc[1] sde[4] >>> 1953263024 blocks super 1.2 >>> >>> unused devices: <none> >>> >>> >>> >>> Anything else I could do? >>> >>> >>> Kind Regards, >>> Theophanis Kontogiannis >>> >>> ΜΦΧ >>> ΘΚ >>> >>> On 23/07/14 03:10, Roger Heflin wrote: >>>> mdadm --stop /dev/mdXX stop >>>> mdadm --assemble --force /dev/mdXX <list all devices good or bad that >>>> were previously in the array> >>>> >>>> The assemble with force should make it turn it on with enough disks. >>>> Then re-add the remaining. >>>> >>>> I have had to do this a number of times when a subset of my sata ports acted up. >>>> >>>> On Tue, Jul 22, 2014 at 5:11 PM, Theophanis Kontogiannis >>>> <tkonto@gmail.com> wrote: >>>>> Dear List. >>>>> >>>>> Hello. >>>>> >>>>> I have the following problem with my CEntOS 6.5 RAID-5 >>>>> >>>>> Array of five disks. >>>>> >>>>> At some point in time I added the fifth disk, however I do not remember >>>>> if I added it as a spare or to go up to RAID-6. >>>>> >>>>> The power and faulty UPS caught me so my RAID-5 has failed (alongside >>>>> with the on board controller :) ) >>>>> >>>>> After replacing the MB, I am in the following situation: >>>>> >>>>> /dev/md0: >>>>> Version : 1.2 >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Used Dev Size : 976630272 (931.39 GiB 1000.07 GB) >>>>> Raid Devices : 5 >>>>> Total Devices : 2 >>>>> Persistence : Superblock is persistent >>>>> >>>>> Update Time : Sat Jul 12 22:11:39 2014 >>>>> State : active, FAILED, Not Started >>>>> Active Devices : 2 >>>>> Working Devices : 2 >>>>> Failed Devices : 0 >>>>> Spare Devices : 0 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> UUID : 953836cd:23314476:5db06922:c886893d >>>>> Events : 16855 >>>>> >>>>> Number Major Minor RaidDevice State >>>>> 0 0 0 0 removed >>>>> 1 8 32 1 active sync /dev/sdc >>>>> 2 0 0 2 removed >>>>> 4 8 64 3 active sync /dev/sde >>>>> 4 0 0 4 removed >>>>> >>>>> >>>>> >>>>> Every effort to add at least one more disk ends up in error: >>>>> >>>>> [root ~]# mdadm /dev/md0 --re-add /dev/sdd >>>>> mdadm: --re-add for /dev/sdd to /dev/md0 is not possible >>>>> >>>>> I also made sure that the devices are in the correct physical order. >>>>> >>>>> >>>>> mdadm --examine /dev/sd[b-f] >>>>> >>>>> >>>>> /dev/sdb: >>>>> Magic : a92b4efc >>>>> Version : 1.2 >>>>> Feature Map : 0x2 >>>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Raid Devices : 5 >>>>> >>>>> Avail Dev Size : 1953260911 (931.39 GiB 1000.07 GB) >>>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>>> Data Offset : 262144 sectors >>>>> Super Offset : 8 sectors >>>>> Recovery Offset : 0 sectors >>>>> State : active >>>>> Device UUID : 7117d844:783abda5:093ee4d9:ba0ac2f0 >>>>> >>>>> Update Time : Sat Jul 12 21:32:42 2014 >>>>> Checksum : 31569c40 - correct >>>>> Events : 16845 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Device Role : Active device 0 >>>>> Array State : AAAAA ('A' == active, '.' == missing) >>>>> /dev/sdc: >>>>> Magic : a92b4efc >>>>> Version : 1.2 >>>>> Feature Map : 0x0 >>>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Raid Devices : 5 >>>>> >>>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>>> Data Offset : 262144 sectors >>>>> Super Offset : 8 sectors >>>>> State : active >>>>> Device UUID : 18bf4347:08c262ec:694eba7f:eb8e6b26 >>>>> >>>>> Update Time : Sat Jul 12 22:11:39 2014 >>>>> Checksum : 55e8716a - correct >>>>> Events : 16855 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Device Role : Active device 1 >>>>> Array State : .AAAA ('A' == active, '.' == missing) >>>>> /dev/sdd: >>>>> Magic : a92b4efc >>>>> Version : 1.2 >>>>> Feature Map : 0x0 >>>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Raid Devices : 5 >>>>> >>>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>>> Data Offset : 262144 sectors >>>>> Super Offset : 8 sectors >>>>> State : active >>>>> Device UUID : 4f77c847:2f567632:66bb5600:9fb2eeba >>>>> >>>>> Update Time : Sat Jul 12 21:32:42 2014 >>>>> Checksum : b19f455b - correct >>>>> Events : 16855 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Device Role : Active device 2 >>>>> Array State : AAAAA ('A' == active, '.' == missing) >>>>> /dev/sde: >>>>> Magic : a92b4efc >>>>> Version : 1.2 >>>>> Feature Map : 0x0 >>>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Raid Devices : 5 >>>>> >>>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>>> Data Offset : 262144 sectors >>>>> Super Offset : 8 sectors >>>>> State : active >>>>> Device UUID : 51b43b6e:7bb8a070:f6375540:28e0b75c >>>>> >>>>> Update Time : Sat Jul 12 22:11:39 2014 >>>>> Checksum : f80197e3 - correct >>>>> Events : 16855 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Device Role : Active device 3 >>>>> Array State : .A.AA ('A' == active, '.' == missing) >>>>> /dev/sdf: >>>>> Magic : a92b4efc >>>>> Version : 1.2 >>>>> Feature Map : 0x0 >>>>> Array UUID : 953836cd:23314476:5db06922:c886893d >>>>> Name : tweety.example.com:0 (local to host >>>>> tweety.example.com) >>>>> Creation Time : Fri Feb 21 18:06:31 2014 >>>>> Raid Level : raid5 >>>>> Raid Devices : 5 >>>>> >>>>> Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB) >>>>> Array Size : 3906521088 (3725.55 GiB 4000.28 GB) >>>>> Used Dev Size : 1953260544 (931.39 GiB 1000.07 GB) >>>>> Data Offset : 262144 sectors >>>>> Super Offset : 8 sectors >>>>> State : clean >>>>> Device UUID : 9f7b1355:936e12f2:813c83a0:13854a6b >>>>> >>>>> Update Time : Sat Jul 12 22:11:39 2014 >>>>> Checksum : cf0bbec1 - correct >>>>> Events : 16855 >>>>> >>>>> Layout : left-symmetric >>>>> Chunk Size : 512K >>>>> >>>>> Device Role : Active device 4 >>>>> Array State : .A.AA ('A' == active, '.' == missing) >>>>> >>>>> >>>>> Any chance to revive this array? >>>>> >>>>> >>>>> -- >>>>> >>>>> Kind Regards, >>>>> Theophanis Kontogiannis >>>>> >>>>> ΜΦΧ >>>>> ΘΚ >>>>> >>>>> >>>>> >>>>> -- >>>>> 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 > -- 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 ^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Problem with RAID-5 not adding disks 2014-07-24 17:39 ` Theophanis Kontogiannis 2014-07-24 19:20 ` Roger Heflin @ 2014-07-24 19:50 ` Robin Hill 1 sibling, 0 replies; 8+ messages in thread From: Robin Hill @ 2014-07-24 19:50 UTC (permalink / raw) To: Theophanis Kontogiannis; +Cc: Roger Heflin, Linux RAID [-- Attachment #1: Type: text/plain, Size: 1300 bytes --] On Thu Jul 24, 2014 at 08:39:09PM +0300, Theophanis Kontogiannis wrote: > Hi Roger, Hi List, > > With a high heart bit rate I tried this: > > mdadm --create /dev/md0 --assume-clean --level=5 --raid-devices=5 /dev/sdb /dev/sdc /dev/sde /dev/sdd missing > > IT WORKED! > > Now I have mounted my date back. > > BUT: > > 1. I have one failing disk according to SMART (that is /dev/sdc) > > 2. /dev/sdb and /dev/sdd have a little smaller size then the others: > > blockdev --getsz /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf > 1953523055 > 1953525168 > 1953523055 > 1953525168 > 1953523055 > All 1TB disks should be exactly the same size (manufacturers are using standard sizes for all disks nowadays). Are these drives all on the same controllers? This looks like maybe the BIOS is reserving some space on the disks, which may have overwritten something in the original array. Have you run a fsck across the array after reassembling it? I suspect you may find the filesystem size doesn't match the original one. Regards, Robin -- ___ ( ' } | Robin Hill <robin@robinhill.me.uk> | / / ) | Little Jim says .... | // !! | "He fallen in de water !!" | [-- Attachment #2: Digital signature --] [-- Type: application/pgp-signature, Size: 181 bytes --] ^ permalink raw reply [flat|nested] 8+ messages in thread
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2014-07-22 22:11 ` Problem with RAID-5 not adding disks Theophanis Kontogiannis
2014-07-23 0:10 ` Roger Heflin
2014-07-23 17:58 ` Theophanis Kontogiannis
2014-07-24 0:06 ` Roger Heflin
2014-07-24 15:31 ` Theophanis Kontogiannis
2014-07-24 17:39 ` Theophanis Kontogiannis
2014-07-24 19:20 ` Roger Heflin
2014-07-24 19:50 ` Robin Hill
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