Changing disk UUID after disk replacing in xcp-ng with Xen Orchestra

##### ISSUE TYPE

* Improvement Request

##### CLOUDSTACK VERSION

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Any
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##### SUMMARY

Hello. I use CloudStack with XCP-NG and I am in search of the best backup solution.
All software, including Xen Orchestra, can restore a backup as new VM with a new disk UUID. After that I detach disk from original VM and attach the recovered disk. VM is working fine, but CloudStack cannot manage the disk due to the new disk UUID.
If I replace disk UUID in CloudStack databases, disk management will be performed normally
Example:
~~~
update volumes SET path="24c34f4d-35b3-400a-92e3-c27ba154aabf" where id=2283;
~~~
Maybe in new version of cloudstack you can add function of manually or automatically changing disk UUID from Cloudstack?
Or import VM from XCP-NG function.

该 issue 没有列出源文件、测试或入口点。首先查看包含 15 条评论的讨论串和提议的卷数据库更新，然后明确预期范围是手动更改 UUID、自动处理替换，还是导入 XCP-NG VM。完成的定义应当是一个受支持的工作流，使 CloudStack 能够安全地管理已恢复的磁盘。

由索引模型根据 Issue 内容生成。