Virtual Hard Disk technology has continued to improve release-over–release, both in terms of the scenarios supported (like boot from VHD) as well as overall performance. This paper details the significant improvements in dynamically expanding and differencing VHD random performance, the substantially faster fixed sized VHD creation speed, and almost zero percent drop in throughput to large differencing VHD chains due to better caching.
When choosing the right VHD for your environment you should consider both the access performance and storage needs. With the improvements demonstrated in Windows Server 2008 R2 the choice has less to do with the access speed and more to do with the amount of memory used due to advanced caching.
Download: Virtual Hard Disk Performance White Paper
It’s been a great pleasure to thank you for this informative article. I will always recommend your article and refer to my friend too for the same.