AWS使用LVM卷组管理卸载时报错

问题情况：

使用AWS EC2 server，挂载了一块磁盘，系统上已经umount了挂载的目录，然后在AWS管理界面取消了此磁盘的依附，过程用了比较长的时间，期间状态还为buzy，但是过了一段时间后还是成功取消了依附，但在系统上使用fdisk查看磁盘依然存在但不能使用，具体请看以下：

[root@ip-10-150-125-190 ~]# fdisk -l

Disk /dev/sda1: 10.7 GB, 10737418240 bytes

255 heads, 63 sectors/track, 1305 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda1 doesn't contain a valid partition table

Disk /dev/sdb: 450.9 GB, 450934865920 bytes

255 heads, 63 sectors/track, 54823 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 450.9 GB, 450934865920 bytes

255 heads, 63 sectors/track, 54823 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdc doesn't contain a valid partition table

Disk /dev/sdf: 322.1 GB, 322122547200 bytes

255 heads, 63 sectors/track, 39162 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System

/dev/sdf1               1       39162   314568733+  8e  Linux LVM

[root@ip-10-150-125-190 ~]#

[root@ip-10-150-125-190 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/sda1             9.9G  7.4G  2.0G  80% /

/dev/sdb              414G  170G  223G  44% /mnt

none                  3.8G     0  3.8G   0% /dev/shm

[root@ip-10-150-125-190 ~]# 

[root@ip-10-150-125-190 ~]# pvscan 

  /dev/VolGroup/data: read failed after 0 of 4096 at 289406910464: Input/output error

  /dev/VolGroup/data: read failed after 0 of 4096 at 289406967808: Input/output error

  /dev/VolGroup/data: read failed after 0 of 4096 at 0: Input/output error

  /dev/VolGroup/data: read failed after 0 of 4096 at 4096: Input/output error

  /dev/sdf: read failed after 0 of 4096 at 0: Input/output error

  /dev/sdf: read failed after 0 of 4096 at 322122481664: Input/output error

  /dev/sdf: read failed after 0 of 4096 at 322122539008: Input/output error

  /dev/sdf: read failed after 0 of 4096 at 4096: Input/output error

  /dev/sdf1: read failed after 0 of 512 at 322118287360: Input/output error

  /dev/sdf1: read failed after 0 of 512 at 322118373376: Input/output error

  /dev/sdf1: read failed after 0 of 512 at 0: Input/output error

  /dev/sdf1: read failed after 0 of 512 at 4096: Input/output error

  /dev/sdf1: read failed after 0 of 2048 at 0: Input/output error

  No matching physical volumes found

[root@ip-10-150-125-190 ~]# 

[root@ip-10-150-125-190 ~]# dmsetup info

Name:              VolGroup-data

State:             ACTIVE

Read Ahead:        256

Tables present:    LIVE

Open count:        0

Event number:      0

Major, minor:      253, 0

Number of targets: 1

UUID: LVM-dygjZ7jTLGp0eO5abylInjgEeAKVm0vbIa1qiyklqI0R2YzIgV2CDoDFOPuWIIbR

[root@ip-10-150-125-190 ~]#

[root@ip-10-150-125-190 ~]# dmsetup remove VolGroup-data

[root@ip-10-150-125-190 ~]# dmsetup info

No devices found

[root@ip-10-150-125-190 ~]#

[root@ip-10-150-125-190 ~]# fdisk -l

Disk /dev/sda1: 10.7 GB, 10737418240 bytes

255 heads, 63 sectors/track, 1305 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda1 doesn't contain a valid partition table

Disk /dev/sdb: 450.9 GB, 450934865920 bytes

255 heads, 63 sectors/track, 54823 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdb doesn't contain a valid partition table

Disk /dev/sdc: 450.9 GB, 450934865920 bytes

255 heads, 63 sectors/track, 54823 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sdc doesn't contain a valid partition table

[root@ip-10-150-125-190 ~]#

解决方案来自：http://serverfault.com/questions/421776/removing-vg-and-lv-after-physical-drive-has-been-removed