Hi Terry,

The disk in the snapshot appears to be in an illegal state. How long has it been like this? Do you have logs from when it happened?

On Tue, Sep 5, 2017 at 8:52 PM, Terry hey <recreationh@gmail.com> wrote:
Dear all,
Thank you for your time to read this post first. 
In the same host, there are four virtual machines. Only one virtual machine that i cannot create a snapshot for backup usage. I have no idea what is happening and how to solve it. Would you guys help me and give some suggestion to me?

Please kindly check the following links. I think those information including two picture of oVirt web manager, engine.log and vdsm.log, would be useful for finding the issue.

engine.log
https://drive.google.com/open?id=0B8dxamAkVEYdeFBOdlFUbnY1cFU
vdsm.log
https://drive.google.com/open?id=0B8dxamAkVEYddFh6dzc0VkVRMk0
Two pictures of oVirt web manger:
Before created the snapshot:
https://drive.google.com/open?id=0B8dxamAkVEYda2d0SzVvc3ZMTFU
After created the snapshot:
https://drive.google.com/open?id=0B8dxamAkVEYdV3lUVUJ0Zy1LeGc

I am really looking forward for you guys' reply. Thank you again for your time to assist me.

Regards,
Terry

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