linux 软件raid无法启动问题！

borenbao

有四块盘分别为
/dev/sdb  
/dev/sdc
/dev/sdd
/dev/sde
做了一个raid 按我想应该是raid5 因为没有别的信息了。其中/etc/raidtab文件不存在。
lsraid -p 得到信息为
[dev   9,   0] /dev/md0         0D03DCFC.284C180B.EB805D7E.D0CBAF57 offline
[dev   8,  17] (unknown)        0D03DCFC.284C180B.EB805D7E.D0CBAF57 unknown
[dev   8,  33] /dev/sdc1        0D03DCFC.284C180B.EB805D7E.D0CBAF57 good
[dev   8,  49] /dev/sdd1        0D03DCFC.284C180B.EB805D7E.D0CBAF57 good
[dev   8,  65] /dev/sde1        0D03DCFC.284C180B.EB805D7E.D0CBAF57 good

这个信息有什么作用吗？

启动时的日志信息是

Mar 26 08:50:31 node3 kernel: md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
Mar 26 08:50:31 node3 kernel: md: Autodetecting RAID arrays.
Mar 26 08:50:31 node3 kernel: md: autorun ...
Mar 26 08:50:31 node3 kernel: md: ... autorun DONE.
Mar 26 08:50:31 node3 kernel: Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Mar 26 08:50:31 node3 kernel: Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
Mar 26 08:50:32 node3 kernel: Attached scsi disk sdc at scsi0, channel 0, id 3, lun 0
Mar 26 08:50:32 node3 kernel: Attached scsi disk sdd at scsi0, channel 0, id 4, lun 0
Mar 26 08:50:32 node3 kernel: Attached scsi disk sde at scsi0, channel 0, id 5, lun 0
Mar 26 08:50:32 node3 kernel: (scsi0:A:0): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
Mar 26 08:50:32 node3 kernel: SCSI device sda: 71687370 512-byte hdwr sectors (36704 MB)
Mar 26 08:50:32 node3 kernel: Partition check:
Mar 26 08:50:32 node3 kernel:  sda: sda1 sda2 sda3 sda4 < sda5 >
Mar 26 08:50:32 node3 kernel: (scsi0:A:1): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
Mar 26 08:50:32 node3 kernel: SCSI device sdb: 71687370 512-byte hdwr sectors (36704 MB)
Mar 26 08:50:32 node3 kernel:  sdb: sdb1
Mar 26 08:50:32 node3 kernel: (scsi0:A:3): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
Mar 26 08:50:32 node3 kernel: SCSI device sdc: 71687370 512-byte hdwr sectors (36704 MB)
Mar 26 08:50:32 node3 kernel:  sdc: sdc1
Mar 26 08:50:32 node3 kernel: (scsi0:A:4): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
Mar 26 08:50:32 node3 kernel: SCSI device sdd: 71687370 512-byte hdwr sectors (36704 MB)
Mar 26 08:50:32 node3 kernel:  sdd: sdd1
Mar 26 08:50:32 node3 kernel: (scsi0:A:5): 160.000MB/s transfers (80.000MHz DT, offset 63, 16bit)
Mar 26 08:50:32 node3 kernel: SCSI device sde: 71687370 512-byte hdwr sectors (36704 MB)
Mar 26 08:50:32 node3 kernel:  sde: sde1
Mar 26 08:50:32 node3 kernel: md: raid0 personality registered as nr 2
Mar 26 08:50:32 node3 kernel: Journalled Block Device driver loaded
Mar 26 08:50:32 node3 kernel: md: Autodetecting RAID arrays.
Mar 26 08:50:32 node3 kernel:  [events: 00000000]
Mar 26 08:50:32 node3 kernel: md: invalid raid superblock magic on sdb1
Mar 26 08:50:32 node3 kernel: md: sdb1 has invalid sb, not importing!
Mar 26 08:50:32 node3 kernel: md: could not import sdb1!
Mar 26 08:50:32 node3 kernel:  [events: 0000001b]
Mar 26 08:50:32 node3 last message repeated 2 times
Mar 26 08:50:32 node3 kernel: md: autorun ...
Mar 26 08:50:32 node3 kernel: md: considering sde1 ...
Mar 26 08:50:32 node3 kernel: md:  adding sde1 ...
Mar 26 08:50:32 node3 kernel: md:  adding sdd1 ...
Mar 26 08:50:32 node3 kernel: md:  adding sdc1 ...
Mar 26 08:50:32 node3 kernel: md: created md0
Mar 26 08:50:32 node3 kernel: md: bind<sdc1,1>
Mar 26 08:50:32 node3 kernel: md: bind<sdd1,2>
Mar 26 08:50:32 node3 kernel: md: bind<sde1,3>
Mar 26 08:50:32 node3 kernel: md: running: <sde1><sdd1><sdc1>
Mar 26 08:50:32 node3 kernel: md: sde1's event counter: 0000001b
Mar 26 08:50:32 node3 kernel: md: sdd1's event counter: 0000001b
Mar 26 08:50:32 node3 kernel: md: sdc1's event counter: 0000001b
Mar 26 08:50:32 node3 kernel: md0: former device sdb1 is unavailable, removing from array!
Mar 26 08:50:32 node3 kernel: md0: max total readahead window set to 1024k
Mar 26 08:50:32 node3 kernel: md0: 4 data-disks, max readahead per data-disk: 256k
Mar 26 08:50:32 node3 kernel: md: md0, array needs 4 disks, has 3, aborting.
Mar 26 08:50:32 node3 kernel: raid0: disks are not ordered, aborting!
Mar 26 08:50:32 node3 kernel: md: pers->run() failed ...
Mar 26 08:50:32 node3 kernel: md :do_md_run() returned -22
Mar 26 08:50:32 node3 kernel: md: md0 stopped.
Mar 26 08:50:32 node3 kernel: md: unbind<sde1,2>
Mar 26 08:50:32 node3 kernel: md: export_rdev(sde1)
Mar 26 08:50:32 node3 kernel: md: unbind<sdd1,1>
Mar 26 08:50:32 node3 kernel: md: export_rdev(sdd1)
Mar 26 08:50:32 node3 kernel: md: unbind<sdc1,0>
Mar 26 08:50:32 node3 kernel: md: export_rdev(sdc1)
Mar 26 08:50:32 node3 kernel: md: ... autorun DONE.

不知道该怎么办。有谁能提供个恩路啊？？？

tyr1

可以Force　Online试一下。

baif

还在使用raidtool?

borenbao

哎，不是我做的啊，我也不太会软RAID的。现在好像用MDADM的比较多哈！

现在问题是我只有命令行，没有xwindow界面如何做啊？而且也是软raid 不是 raid卡。有没有办法？

xiaorenwu

估计悬了

borenbao

哎！刚才看看了精华版的东东发现不是raid5而是raid0 我就晕了，还有人用4块硬盘做RAID0 的吗？狂日。

aladdin7912

呵呵，如果是RAID 0 就没办法啦，只能通过外部软件来重新组合这些数据了。
需要恢复上面的数据吗，可以联系我，价格优惠。

另外，组建哪种级别的RAID通常是根据应用来决定的，如果对数据的吞吐量要求较高，那么RAID 0无疑是最适合的，如果比较在意数据的安全，那么RAID 5更适合一些。