Hi,
This forumis covering MS Training and Exams. Technical questions to microsoft products are best in a fitting technet forum.
You find the technet forums at
http://social.technet.microsoft.com/Forums/en-us/categories/.
Maybe the
Virtual Machine Manager – Hyper-V Forum is the correct one to ask about it.
Sorry, that I cannot help you further. At the moment I am wodnering, what you mean exactly. I would add / remove disks in the Machine configuration of Hyper-V, but it sounds like you want to take disks online/offlien in disk manager of the guest system?
But as Software Developer I am not the Hyper-V specialist. So it is most important to go to the correct forum so the real experts read it and answer your question. (Somaybe a moderator could move the porsting? Thanks!)
With kind regards,
Konrad