Reading an article online today about a fix to an issue involving Windows Server 2008 R2 and it’s write performance to a Back-End SAN it made me curious. Since in a VMware world, especially, your always looking for way to improve back-end performance for SQL and other write intensive servers/applications and bleed as much perofrmance as possible.   After applying this hotfix perofrmance improved for Writes as-well as on reads.   Hopefully this hotfix helps other as it has helped me. 🙂   https://support.microsoft.com/en-us/kb/2769701