XenServer丢失存储库SR解决方法
XenServer6.5列出所有pbd信息
# xe pbd-list
uuid ( RO) : 4a0625ac-8c60-e894-762f-42094308b088
host-uuid ( RO): e6d4f304-3a2e-446e-9fd8-a585b36c08b9
sr-uuid ( RO): c3fcb5cf-3cb4-5e09-2553-589644de07b7
device-config (MRO): device: /dev/disk/by-id/scsi-3644a8420058cc100212d5f6f0ee3c7a9-part3
currently-attached ( RO): false
记录下这个false的uuid，注意看device这栏的格式，不要删错了（删除也没事，根据下面的文档也可以还原）
删掉这个false的pbd
# xe pbd-destroy uuid=4a0625ac-8c60-e894-762f-42094308b088
1、使用pvscan列出卷
# pvscan
PV /dev/sda3 VG XSLocalEXT-c3fcb5cf-3cb4-5e09-2553-589644de07b7 lvm2
Total: 1
/ in use: 1
/ in no VG: 0
记录下uuid=c3fcb5cf-3cb4-5e09-2553-589644de07b7 type=lvm
2、创建出这个uuid的存储
# xe sr-introduce uuid=c3fcb5cf-3cb4-5e09-2553-589644de07b7 type=lvm name-label=”Local storage” content-type=user
The server failed to handle your request, due to an internal error.The given message may give details useful for debugging the problem.
message: Db_exn.Uniqueness_constraint_violation(“SR”, “uuid”, “c3fcb5cf-3cb4-5e09-2553-589644de07b7”)
下面的error信息不用管，表示已经存在了这个uuid，不用重复创建
3、找到SR分区的SCSI ID
# ls -l /dev/disk/by-id/
总计 0
lrwxrwxrwx 1 root root9 03-09 10:27 scsi-3644a8420058cc100212d5f6f0ee3c7a9 -> ../../sda
lrwxrwxrwx 1 root root 10 03-09 10:27 scsi-3644a8420058cc100212d5f6f0ee3c7a9-part1 -> ../../sda1
lrwxrwxrwx 1 root root 10 03-09 10:27 scsi-3644a8420058cc100212d5f6f0ee3c7a9-part2 -> ../../sda2
lrwxrwxrwx 1 root root 10 03-09 10:27 scsi-3644a8420058cc100212d5f6f0ee3c7a9-part3 -> ../../sda3
注意是sda3，通过最上面的pbd列表可知，注意看scsi-后面的字符
4、列出服务器的UUID
# xe host-list
uuid ( RO) : e6d4f304-3a2e-446e-9fd8-a585b36c08b9
name-label ( RW): xenserver
name-description ( RW): Default install of XenServer
5、通过设置scsi id、host id、sr uuid检测出pdb uuid
# xe pbd-create sr-uuid=c3fcb5cf-3cb4-5e09-2553-589644de07b7 device-config:device=/dev/disk/by-id/scsi-3644a8420058cc100212d5f6f0ee3c7a9-part3 host-uuid=e6d4f304-3a2e-446e-9fd8-a585b36c08b9
f1de0e17-dda0-abdd-1c5d-af02e91d2224
这里得到的pdb uuid=f1de0e17-dda0-abdd-1c5d-af02e91d2224
6、把存储还原
# xe pbd-plug uuid=f1de0e17-dda0-abdd-1c5d-af02e91d2224
如果还原时提示如下错误
# xe pbd-plug uuid=f1de0e17-dda0-abdd-1c5d-af02e91d2224
Error code: SR_BACKEND_FAILURE_52
Error parameters: , Logical Volume mount/activate error ,
使用fsck修复（后面的/dev/xxx就是上面报错的信息，注意，ext3是根据/var/log/MSlog得到的，根据自己情况进行修改）
# fsck.ext3 /dev/XSLocalEXT-c3fcb5cf-3cb4-5e09-2553-589644de07b7/c3fcb5cf-3cb4-5e09-2553-5896
e2fsck 1.39 (29-May-2006)
/dev/XSLocalEXT-c3fcb5cf-3cb4-5e09-2553-589644de07b7/c3fcb5cf-3cb4-5e09-2553-589644de07b7 is mounted.
WARNING!!!Running e2fsck on a mounted filesystem may cause
SEVERE filesystem damage.
Do you really want to continue (y/n)? yes
/dev/XSLocalEXT-c3fcb5cf-3cb4-5e09-2553-589644de07b7/c3fcb5cf-3cb4-5e09-2553-589644de07b7: recovering journal
/dev/XSLocalEXT-c3fcb5cf-3cb4-5e09-2553-589644de07b7/c3fcb5cf-3cb4-5e09-2553-589644de07b7: clean, 78/487063552 files, 379062156/974124032 blocks
重新还原即可
# xe pbd-plug uuid=f1de0e17-dda0-abdd-1c5d-af02e91d2224
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