我使用了英特尔快速存储技术（假 RAID），有 8 个磁盘（6 个磁盘用于 RAID 5，2 个磁盘用于热备用）。
~# mdadm --detail-platform
Platform : Intel(R) Matrix Storage Manager
Version : 4.3.0.1018
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : supported
Max Disks : 8
Max Volumes : 2 per array, 4 per controller
Platform : Intel(R) Matrix Storage Manager
Version : 4.3.0.1018
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : supported
Max Disks : 8
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:11.4 (SATA)
Port0 : /dev/sda (WD-WMC4M0F1U9V3)
Port1 : /dev/sdb (WD-WMC4M0F454X9)
Port2 : /dev/sdc (WD-WCC4M2UY549P)
Port3 : /dev/sdd (WD-WCC4M6ZS0Y84)
I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
Port0 : /dev/sde (WD-WCC4N2ELDPNU)
Port1 : /dev/sdf (WD-WCC4M7HPS95S)
Port2 : /dev/sdg (WD-WCC4N7JKRAZX)
Port3 : /dev/sdh (WD-WCC4M7NPJ6F6)
Port4 : - no device attached -
Port5 : - no device attached -
操作系统是Debian 7和mdadm v3.2.5。
服务器无明显原因关闭，除第一个磁盘外，其他磁盘均变为备用。
~# mdadm --examine --verbose /dev/sda
/dev/sda:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.3.00
Orig Family : 2699cae1
Family : 2699cae1
Generation : 0000bc6c
Attributes : All supported
UUID : 0d787829:4de03ecb:ee3fd89b:a6e12bc4
Checksum : b53c9042 correct
MPB Sectors : 2
Disks : 6
RAID Devices : 1
Disk00 Serial : WD-WMC4M0F1U9V3
State : active
Id : 00000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
[vol0]:
UUID : eacdf403:3a692d56:1ab3e890:a8373e9c
RAID Level : 5
Members : 6
Slots : [UUUUUU]
Failed disk : none
This Slot : 0
Array Size : 19535114240 (9315.07 GiB 10001.98 GB)
Per Dev Size : 3907022848 (1863.01 GiB 2000.40 GB)
Sector Offset : 0
Num Stripes : 15261808
Chunk Size : 128 KiB
Reserved : 0
Migrate State : idle
Map State : normal
Dirty State : clean
Disk01 Serial : WD-WCC4M7NPJ6F6
State : active
Id : 07000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
Disk02 Serial : WD-WCC4N7JKRAZX
State : active
Id : 06000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
Disk03 Serial : WD-WCC4M7HPS95S
State : active
Id : 05000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
Disk04 Serial : WD-WCC4N2ELDPNU
State : active
Id : 04000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
Disk05 Serial : WD-WCC4M6ZS0Y84
State : active
Id : 03000000
Usable Size : 3907022862 (1863.01 GiB 2000.40 GB)
所有其他磁盘均具有以下状态：
~# mdadm --examine --verbose /dev/sdd
/dev/sdd:
Magic : Intel Raid ISM Cfg Sig.
Version : 1.0.00
Orig Family : 00000000
Family : 80ba23ff
Generation : 00000001
Attributes : All supported
UUID : 00000000:00000000:00000000:00000000
Checksum : b60a3585 correct
MPB Sectors : 1
Disks : 1
RAID Devices : 0
Disk00 Serial : WD-WCC4M6ZS0Y84
State : spare
Id : 03000000
Usable Size : 3907026958 (1863.02 GiB 2000.40 GB)
Disk Serial : WD-WCC4M6ZS0Y84
State : spare
Id : 03000000
Usable Size : 3907026958 (1863.02 GiB 2000.40 GB)
我尝试过的：
:~# mdadm --assemble --verbose --metadata=imsm /dev/md/imsm0
mdadm: looking for devices for /dev/md/imsm0
mdadm: /dev/sda is identified as a member of /dev/md/imsm0, slot -1.
mdadm: added /dev/sda to /dev/md/imsm0 as -1
mdadm: Container /dev/md/imsm0 has been assembled with 1 drive
:~# mdadm -I /dev/md/imsm0 --verbose
mdadm: not enough devices to start the container
或者重新组装所需的磁盘（vol0 中的磁盘，但我很确定在我最初的创建 raid 容器的命令中那是 [af]）：
:~# mdadm --assemble /dev/md/imsm0 --metadata=imsm /dev/sd[adefgh]
mdadm: Container /dev/md/imsm0 has been assembled with 6 drives
:~# mdadm -I /dev/md/imsm0 --verbose
mdadm: not enough devices to start the container
:~# mdadm --detail --scan /dev/md/imsm0
/dev/md/imsm0:
Version : imsm
Raid Level : container
Total Devices : 6
Working Devices : 6
UUID : 0d787829:4de03ecb:ee3fd89b:a6e12bc4
Member Arrays :
Number Major Minor RaidDevice
0 8 48 - /dev/sdd
1 8 64 - /dev/sde
2 8 80 - /dev/sdf
3 8 96 - /dev/sdg
4 8 112 - /dev/sdh
5 8 0 - /dev/sda