Problem:
After migrating a shutdown machine to another SR you find yourself that your vm is not starting up ;
Solution:
Perform on the moved ST an SR RE-Scan, and the vm hence will start;
Citrix: The vdi is not available (Can’t start the VM )
Problem:
After migrating a shutdown machine to another SR you find yourself that your vm is not starting up ;
Solution:
Perform on the moved ST an SR RE-Scan, and the vm hence will start;
sevenitblog.com 
Useless guide for beginners, what is ST; SR ? Where is the SR rescan button ?