My previous blog https://chanmingman.wordpress.com/2014/08/10/save-your-hyper-v-image-instead-of-pause-it-to-prevent-keeping-the-memory/ lead to answer question by Senthamil Selvan “Does it takes more HDD space if we save? What about server with 100 GB used size? Any delay in restore?”
He found more hard disk space has been used if save the Hyper-V image instead of pause the image in has Surface Pro.
I tried it in my Windows 8 and guest machine is Windows 7. Somehow it seems the impact is not significant.
When I paused the virtual machine.
And when I saved the virtual machine.