提前感谢您提供的任何帮助。
之前我尝试将我的 mdadm 阵列从 Ubuntu 服务器移动到在 ESXi 主机上运行的虚拟化 Ubuntu 服务器。
我将它们连接起来并可以在 ESXi 中看到磁盘，然后使用直通将它们传送到 Ubuntu Server 实例，但这不起作用，我只能看到其中三个。
然后我将磁盘移回旧服务器并启动它，但在启动时无法看到阵列，并且仍然失败。
该阵列应为 /dev/sd{af} 上的 RAID6。
我有最重要的 2TB 的备份，但有很多数据只有这份副本（我可以承受丢失，但希望不会发生这种情况）。
我试过了：
mdadm——assemble——scan——verbose：
mdadm: looking for devices for /dev/md0
mdadm: no RAID superblock on /dev/sdg1
mdadm: no RAID superblock on /dev/sdg
mdadm: /dev/sdf requires wrong number of drives.
mdadm: /dev/sde requires wrong number of drives.
mdadm: no RAID superblock on /dev/sdd2
mdadm: no RAID superblock on /dev/sdd1
mdadm: no RAID superblock on /dev/sdd
mdadm: no RAID superblock on /dev/sdb2
mdadm: no RAID superblock on /dev/sdb1
mdadm: no RAID superblock on /dev/sdb
mdadm: no RAID superblock on /dev/sdc2
mdadm: no RAID superblock on /dev/sdc1
mdadm: no RAID superblock on /dev/sdc
mdadm: /dev/sda requires wrong number of drives.
/cat/mdstat 中显示以下内容：
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
unused devices: <none>
fdisk -l：
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sda: 3000.6 GB, 3000592982016 bytes
5 heads, 3 sectors/track, 390702211 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sda1 2048 4294967294 2147482623+ 8e Linux LVM
WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdc: 3000.6 GB, 3000592982016 bytes
256 heads, 63 sectors/track, 363376 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x7b8883da
Device Boot Start End Blocks Id System
/dev/sdc1 1 4294967295 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes
256 heads, 63 sectors/track, 363376 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x7b8883db
Device Boot Start End Blocks Id System
/dev/sdb1 1 4294967295 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdd: 3000.6 GB, 3000592982016 bytes
256 heads, 63 sectors/track, 363376 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x453c133d
Device Boot Start End Blocks Id System
/dev/sdd1 1 4294967295 2147483647+ ee GPT
Partition 1 does not start on physical sector boundary.
WARNING: GPT (GUID Partition Table) detected on '/dev/sde'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sde: 3000.6 GB, 3000592982016 bytes
5 heads, 3 sectors/track, 390702211 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/sde1 2048 4294967294 2147482623+ 8e Linux LVM
Disk /dev/sdf: 3000.6 GB, 3000592982016 bytes
255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
Disk /dev/sdf doesn't contain a valid partition table
分开
Warning: /dev/sda contains GPT signatures, indicating that it has a GPT table.
However, it does not have a valid fake msdos partition table, as it should.
Perhaps it was corrupted -- possibly by a program that doesn't understand GPT
partition tables. Or perhaps you deleted the GPT table, and are now using an
msdos partition table. Is this a GPT partition table?
Yes/No? n
Model: ATA WDC WD30EZRX-00D (scsi)
Disk /dev/sdb: 3001GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
1 17.4kB 134MB 134MB Microsoft reserved partition msftres
2 135MB 3001GB 3000GB Basic data partition msftdata
Model: ATA WDC WD30EZRX-00D (scsi)
Disk /dev/sdc: 3001GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
1 17.4kB 134MB 134MB Microsoft reserved partition msftres
2 135MB 3001GB 3000GB Basic data partition msftdata
Model: ATA WDC WD30EZRX-00M (scsi)
Disk /dev/sdd: 3001GB
Sector size (logical/physical): 512B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
1 17.4kB 134MB 134MB Microsoft reserved partition msftres
2 135MB 3001GB 3000GB Basic data partition msftdata
Warning: /dev/sde contains GPT signatures, indicating that it has a GPT table. However, it does not have a valid fake msdos partition table, as it should. Perhaps it was corrupted --
possibly by a program that doesn't understand GPT partition tables. Or perhaps you deleted the GPT table, and are now using an msdos partition table. Is this a GPT partition table?
Yes/No? n
Error: /dev/sdf: unrecognised disk label
mdadm --examine /dev/sd[af] 的输出
/dev/sda:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : b377d975:86beb86c:9da9f21d:f73b2451
Name : NAS:0 (local to host NAS)
Creation Time : Sat Jan 23 17:57:37 2016
Raid Level : raid6
Raid Devices : 6
Avail Dev Size : 5860271024 (2794.40 GiB 3000.46 GB)
Array Size : 11720540160 (11177.58 GiB 12001.83 GB)
Used Dev Size : 5860270080 (2794.39 GiB 3000.46 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 013740d6:5cc445e7:625f3257:8608daec
Update Time : Tue Jul 26 04:09:29 2016
Checksum : 14ba6ebd - correct
Events : 2949004
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAAA ('A' == active, '.' == missing)
/dev/sdb:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
/dev/sdc:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
/dev/sdd:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
/dev/sde:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : b377d975:86beb86c:9da9f21d:f73b2451
Name : NAS:0 (local to host NAS)
Creation Time : Sat Jan 23 17:57:37 2016
Raid Level : raid6
Raid Devices : 6
Avail Dev Size : 5860271024 (2794.40 GiB 3000.46 GB)
Array Size : 11720540160 (11177.58 GiB 12001.83 GB)
Used Dev Size : 5860270080 (2794.39 GiB 3000.46 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 19096ab0:3e3aac62:7afdfc97:86eeb5f6
Update Time : Tue Jul 26 04:09:29 2016
Checksum : b4f13acc - correct
Events : 2949004
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAAA ('A' == active, '.' == missing)
/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : b377d975:86beb86c:9da9f21d:f73b2451
Name : NAS:0 (local to host NAS)
Creation Time : Sat Jan 23 17:57:37 2016
Raid Level : raid6
Raid Devices : 6
Avail Dev Size : 5860271024 (2794.40 GiB 3000.46 GB)
Array Size : 11720540160 (11177.58 GiB 12001.83 GB)
Used Dev Size : 5860270080 (2794.39 GiB 3000.46 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
State : clean
Device UUID : dc424c5a:b4845f55:373a04e0:78d96723
Update Time : Tue Jul 26 04:09:29 2016
Checksum : c63fe6b9 - correct
Events : 2949004
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAAAA ('A' == active, '.' == missing)
请帮助我！谢谢！