是mdadm RAID吐司？

我把所有的硬盘都拿出来放到一个新的CPU /主板上。（升级）

我启动和mdadm声称它无法启动我退化的RAID。

的/ dev / sdb的

sudo mdadm --examine /dev/sdb /dev/sdb: Magic : a92b4efc Version : 1.2 Feature Map : 0x0 Array UUID : 91a6c44d:21226975:8d2dc41a:7fcff414 Name : desktop:0 (local to host desktop) Creation Time : Tue Jun 25 19:03:31 2013 Raid Level : raid5 Raid Devices : 3 Avail Dev Size : 5860271024 (2794.40 GiB 3000.46 GB) Array Size : 5860270080 (5588.79 GiB 6000.92 GB) Used Dev Size : 5860270080 (2794.39 GiB 3000.46 GB) Data Offset : 262144 sectors Super Offset : 8 sectors State : clean Device UUID : 367cb248:993e2658:ecd4b56d:2aaa0a6a Update Time : Tue Mar 4 17:48:54 2014 Checksum : d4572f50 - correct Events : 12635 Layout : left-symmetric Chunk Size : 512K Device Role : Active device 1 Array State : AAA ('A' == active, '.' == missing)

的/ dev / SDC

  sudo mdadm --examine /dev/sdc /dev/sdc: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee)

的/ dev / SDD

  sudo mdadm --examine /dev/sdd /dev/sdd: MBR Magic : aa55 Partition[0] : 4294967295 sectors at 1 (type ee)

当我试图“重新创build”它会发生什么

  sudo mdadm --create /dev/md0 --level=5 --raid-devices=3 --spare-devices=0 /dev/sd[bcd] mdadm: /dev/sdb appears to be part of a raid array: level=raid5 devices=3 ctime=Tue Jun 25 19:03:31 2013 mdadm: /dev/sdc appears to be part of a raid array: level=raid0 devices=0 ctime=Wed Dec 31 18:00:00 1969 mdadm: partition table exists on /dev/sdc but will be lost or meaningless after creating array mdadm: /dev/sdd appears to be part of a raid array: level=raid0 devices=0 ctime=Wed Dec 31 18:00:00 1969 mdadm: partition table exists on /dev/sdd but will be lost or meaningless after creating array

我希望有一个机会，我可以得到我的东西回来，考虑到mdadm没有看到sdc / sdd是一个团队的一部分，但只是不一样的。

我的烤面包是什么？

编辑：试图通过指定组装

  sudo mdadm --assemble /dev/md0 /dev/sd[bcd] mdadm: no RAID superblock on /dev/sdc mdadm: /dev/sdc has no superblock - assembly aborted

尝试使用 – 扫描

  sudo mdadm --assemble --scan mdadm: /dev/md0 assembled from 1 drive - not enough to start the array.

编辑＃2

  cat /proc/mdstat Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md0 : inactive sdb[1](S) 2930135512 blocks super 1.2 unused devices: <none>

编辑＃3

的/ dev / sdb的

  sudo gdisk -l /dev/sdb GPT fdisk (gdisk) version 0.8.7 Partition table scan: MBR: not present BSD: not present APM: not present GPT: not present Creating new GPT entries. Disk /dev/sdb: 5860533168 sectors, 2.7 TiB Logical sector size: 512 bytes Disk identifier (GUID): 76360B85-31EF-4155-8F9E-767C0C14454E Partition table holds up to 128 entries First usable sector is 34, last usable sector is 5860533134 Partitions will be aligned on 2048-sector boundaries Total free space is 5860533101 sectors (2.7 TiB) Number Start (sector) End (sector) Size Code Name

的/ dev / SDC

  sudo gdisk -l /dev/sdc GPT fdisk (gdisk) version 0.8.7 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sdc: 5860533168 sectors, 2.7 TiB Logical sector size: 512 bytes Disk identifier (GUID): DBD9F056-E1AE-4C22-826F-2D359EF6680E Partition table holds up to 128 entries First usable sector is 34, last usable sector is 5860533134 Partitions will be aligned on 2048-sector boundaries Total free space is 2925 sectors (1.4 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 5860532223 2.7 TiB 0700

的/ dev / SDD

  sudo gdisk -l /dev/sdd GPT fdisk (gdisk) version 0.8.7 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sdd: 5860533168 sectors, 2.7 TiB Logical sector size: 512 bytes Disk identifier (GUID): BE9B843B-62CB-4D12-A661-5FA9AF871493 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 5860533134 Partitions will be aligned on 2048-sector boundaries Total free space is 2925 sectors (1.4 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 5860532223 2.7 TiB 0700

--create将创build一个数组，而不是组装 – 使用--assemble 。

如果没有帮助，请在继续之前查看/ proc / mdstat。您的检查输出指示所有arrays成员都存在。

编辑：你的驱动器sdc和sdd显然有一个保护性的MBR（由分区typesEE表示），即他们携带一个GPT分区表。也许你正在查看错误的磁盘，你的内核不支持GPT，或者重写了数组头文件？

出于某种原因，您似乎已将整个磁盘用于其中一个驱动器，而其他两个驱动器则使用了一个分区。尝试使用分区进行组装。

 mdadm --assemble /dev/sdb /dev/sd[cd]1