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Date:  Fri, 9 May 2008 10:28:39 -0700
From:  "Ken Marcus - Precision Web Hosting, Inc." <kenmarcus (at mark) precisionweb.net>
Subject:  [coba-e:12782] raid rebuild question
To:  <coba-e (at mark) bluequartz.org>
Message-Id:  <0dd101c8b1fa$204ce5f0$6601a8c0@OfficeKen>
References:  <48247360.1000705 (at mark) zbronx.com>
X-Mail-Count: 12782

Hi all

I have a server that just started showing a raid problem.

cat /proc/mdstat

Personalities : [raid1]
md6 : active raid1 sdb1[1] sda1[0]
      104320 blocks [2/2] [UU]

md3 : active raid1 sdb3[2](F) sda3[0]
      4192896 blocks [2/1] [U_]

md5 : active raid1 sdb5[1] sda5[0]
      1052160 blocks [2/2] [UU]

md2 : active raid1 sdb6[2](F) sda6[0]
      1052160 blocks [2/1] [U_]

md4 : active raid1 sdb7[2](F) sda7[0]
      475692544 blocks [2/1] [U_]

md1 : active raid1 sdb2[2](F) sda2[0]
      6289344 blocks [2/1] [U_]


If I reboot it, will it try to rebuild the raid like the raq550  raq4 
servers did?
Or do I need to issue some command to ask it to try?

dmesg shows:
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata2.00: cmd 25/00:20:53:86:24/00:00:17:00:00/e0 tag 0 cdb 0x0 data 16384 in
         res 40/00:01:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
ata2: port is slow to respond, please be patient (Status 0xd0)
ata2: port failed to respond (30 secs, Status 0xd0)
ata2: soft resetting port
ata2: port is slow to respond, please be patient (Status 0xd0)
ata2: port failed to respond (30 secs, Status 0xd0)
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: qc timeout (cmd 0xec)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2: limiting SATA link speed to 1.5 Gbps
ata2: failed to recover some devices, retrying in 5 secs
ata2: hard resetting port
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata2.00: qc timeout (cmd 0xec)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2: failed to recover some devices, retrying in 5 secs
ata2: hard resetting port
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata2.00: qc timeout (cmd 0xec)
ata2.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata2.00: revalidation failed (errno=-5)
ata2.00: disabled
ata2: EH complete
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 388269651
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 388269659
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 388269667
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 388269675
raid1: Disk failure on sdb7, disabling device.
        Operation continuing on 1 devices
raid1: sdb7: rescheduling sector 362886888
raid1: sda7: redirecting sector 362886888 to another mirror
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 21173532
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 296537979
raid1: sdb7: rescheduling sector 271155216
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 298093667
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 298093675
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 298093683
raid1: sdb7: rescheduling sector 272710904
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 304304379
raid1: sdb7: rescheduling sector 278921616
md: write_disk_sb failed for device sdb3
raid1: Disk failure on sdb3, disabling device.
        Operation continuing on 1 devices
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485059
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485067
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485075
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485083
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485091
raid1: sdb7: rescheduling sector 307102296
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 372064867
raid1: sdb7: rescheduling sector 346682104
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373230347
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373230355
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373230363
raid1: sdb7: rescheduling sector 347847584
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373893979
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373893987
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373893995
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373894003
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373894011
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373894019
raid1: sdb7: rescheduling sector 348511216
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094027
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094035
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094043
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094051
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094059
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 299094067
raid1: sdb7: rescheduling sector 273711264
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 400006859
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 400006867
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 400006875
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 400006883
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 400006891
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 12787533
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 25382568
md: write_disk_sb failed for device sdb2
raid1: Disk failure on sdb2, disabling device.
        Operation continuing on 1 devices
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 434904123
md: write_disk_sb failed for device sdb6
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 434904131
raid1: Disk failure on sdb6, disabling device.
        Operation continuing on 1 devices
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 976767851
md: write_disk_sb failed for device sdb7
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 332485155
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373231411
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373231419
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373231427
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 373231435
md: errors occurred during superblock update, repeating
md: errors occurred during superblock update, repeating
md: errors occurred during superblock update, repeating
md: errors occurred during superblock update, repeating
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 23301408
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 237549
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 13983772
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda3
 disk 1, wo:1, o:0, dev:sdb3
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda3
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda6
 disk 1, wo:1, o:0, dev:sdb6
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda6
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda2
 disk 1, wo:1, o:0, dev:sdb2
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda2
SCSI error : <1 0 0 0> return code = 0x40000
end_request: I/O error, dev sdb, sector 516334915
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda7
 disk 1, wo:1, o:0, dev:sdb7
RAID1 conf printout:
 --- wd:1 rd:2
 disk 0, wo:0, o:1, dev:sda7



Thanks in advance for any advice you may have.


----
Ken Marcus
Ecommerce Web Hosting by
Precision Web Hosting, Inc.
http://www.precisionweb.net