突然断电造成的软raid5错误，请大家帮帮忙

tonkin

由于突然断电造成软raid5不能启动，具体参数如下：

1.日志信息
Aug  2 00:37:37 nas4100 kernel: hdd: host protected area => 1
Aug  2 00:37:37 nas4100 kernel: hdd: 160086528 sectors (81964 MB) w/2048KiB Cache, CHS=158816/16/63, UDMA(100)
Aug  2 00:37:37 nas4100 kernel: ide-floppy driver 0.99.newide
Aug  2 00:37:37 nas4100 kernel: Partition check:
Aug  2 00:37:37 nas4100 kernel:  hda: hda1
Aug  2 00:37:37 nas4100 kernel:  hdb: hdb1 hdb2 hdb3 hdb4 < hdb5 hdb6 hdb7 >
Aug  2 00:37:37 nas4100 kernel:  hdc: hdc1
Aug  2 00:37:37 nas4100 kernel:  hdd: hdd1
Aug  2 00:37:37 nas4100 kernel: ide-floppy driver 0.99.newide
Aug  2 00:37:37 nas4100 kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
Aug  2 00:37:37 nas4100 kernel: md: Autodetecting RAID arrays.
Aug  2 00:37:37 nas4100 kernel:  [events: 0000004b]
Aug  2 00:37:37 nas4100 kernel:  [events: 0000004a]
Aug  2 00:37:37 nas4100 kernel:  [events: 0000004c]
Aug  2 00:37:37 nas4100 kernel: md: autorun ...
Aug  2 00:37:37 nas4100 kernel: md: considering hdd1 ...
Aug  2 00:37:37 nas4100 kernel: md:  adding hdd1 ...
Aug  2 00:37:37 nas4100 kernel: md:  adding hdc1 ...
Aug  2 00:37:37 nas4100 kernel: md:  adding hda1 ...
Aug  2 00:37:37 nas4100 kernel: md: created md0
Aug  2 00:37:37 nas4100 kernel: md: bind<hda1,1>
Aug  2 00:37:37 nas4100 kernel: md: bind<hdc1,2>
Aug  2 00:37:37 nas4100 kernel: md: bind<hdd1,3>
Aug  2 00:37:37 nas4100 kernel: md: running: <hdd1><hdc1><hda1>
Aug  2 00:37:37 nas4100 kernel: md: hdd1's event counter: 0000004c
Aug  2 00:37:37 nas4100 kernel: md: hdc1's event counter: 0000004a
Aug  2 00:37:37 nas4100 kernel: md: hda1's event counter: 0000004b
Aug  2 00:37:37 nas4100 kernel: md: superblock update time inconsistency -- using the most recent one
Aug  2 00:37:37 nas4100 kernel: md: freshest: hdd1
Aug  2 00:37:37 nas4100 apmd[649]: Charge: * * * (-1% unknown)
Aug  2 00:37:37 nas4100 kernel: md: kicking non-fresh hdc1 from array!
Aug  2 00:37:37 nas4100 kernel: md: unbind<hdc1,2>
Aug  2 00:37:37 nas4100 kernel: md: export_rdev(hdc1)
Aug  2 00:37:37 nas4100 kernel: md0: kicking faulty hda1!
Aug  2 00:37:37 nas4100 kernel: md: unbind<hda1,1>
Aug  2 00:37:37 nas4100 kernel: md: export_rdev(hda1)
Aug  2 00:37:37 nas4100 kernel: md0: removing former faulty hdc1!
Aug  2 00:37:37 nas4100 kernel: md: md0: raid array is not clean -- starting background reconstruction
Aug  2 00:37:37 nas4100 kernel: kmod: failed to exec /sbin/modprobe -s -k md-personality-4, errno = 2
Aug  2 00:37:37 nas4100 kernel: md: personality 4 is not loaded!
Aug  2 00:37:37 nas4100 kernel: md :do_md_run() returned -22
Aug  2 00:37:37 nas4100 kernel: md: md0 stopped.
Aug  2 00:37:37 nas4100 kernel: md: unbind<hdd1,0>
Aug  2 00:37:37 nas4100 kernel: md: export_rdev(hdd1)
Aug  2 00:37:37 nas4100 sshd:  succeeded
Aug  2 00:37:37 nas4100 kernel: md: ... autorun DONE.
……

2.fdisk -l 信息
Disk /dev/hdc: 81.9 GB, 81964302336 bytes
16 heads, 63 sectors/track, 158816 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdc1             1    158816  80043232+  fd  Linux raid autodetect

Disk /dev/hdd: 81.9 GB, 81964302336 bytes
16 heads, 63 sectors/track, 158816 cylinders
Units = cylinders of 1008 * 512 = 516096 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdd1             1    158816  80043232+  fd  Linux raid autodetect

Disk /dev/hda: 81.9 GB, 81964302336 bytes
255 heads, 63 sectors/track, 9964 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1             1      9964  80035798+  fd  Linux raid autodetect

Disk /dev/hdb: 122.9 GB, 122942324736 bytes
255 heads, 63 sectors/track, 14946 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdb1   *         1        13    104391   83  Linux
/dev/hdb2            14     10757  86301180   83  Linux
/dev/hdb3         10758     14686  31559692+  83  Linux
/dev/hdb4         14687     14946   2088450    f  Win95 Ext'd (LBA)
/dev/hdb5         14687     14751    522081   83  Linux
/dev/hdb6         14752     14881   1044193+  83  Linux
/dev/hdb7         14882     14946    522081   82  Linux swap


3. df -m 信息
文件系统               1M-块        已用     可用 已用% 挂载点
/dev/hdb5                  494        81       388  18% /
/dev/hdb1                   99        10        85  10% /boot
none                       125         0       125   0% /dev/shm
/dev/hdb2                82955      1703     77039   3% /usr
/dev/hdb6                 1004        61       892   7% /var


4. /etc/raidtab 信息
raiddev                 /dev/md0
raid-level              5
nr-raid-disks           3
persistent-superblock   1
chunk-size              16k

device                  /dev/hda1
raid-disk               0
device                  /dev/hdc1
raid-disk               1
device                  /dev/hdd1
raid-disk               2


5. /proc/mdstat 信息
Personalities : [raid5]
read_ahead not set
unused devices: <none>

请大家帮帮忙，看看还有救没有？我里面有很重要数据呢。555~~

scottwa

这个和我碰到的问题差不多；
你的raid5已经有2块盘ubind了，无法构建raid了
希望有高手解决阿
另：你是软raid还是硬件？

tonkin

软raid.真的不行了吗？

akai_feng

软件raid，我只做raid 1，raid 5太恐怖了