Enabling NFS VAAI Support in Synology 5.1
Synology enabled VAAI support for NFS in version 5.1 of their DSM software. In order to take advantage of this technology from ESXi hosts we need to do two things:
Upgrade DSM to at least version 5.1-5004 (2014/11/06) Install the Synology NFS Plug-in for VMware VAAI DSM
DSM can be upgraded from within the Control Panel application. Head to the Update & Restore section, check for and install updates. This will likely require a reboot so ensure anything or anyone using it is shutdown or notified.