After reading the blog article by Erik Bussink on how to use the VSAN Observer software on a Windows vCenter Server, I quickly got annoyed by manually having to start the Ruby rvc script and the VSAN Observer every time
I created a little batch file that can be put on your desktop to launch the VSAN Observer
Just enter your credentials, vCenter server Name, Datacenter Name and Cluster Name and make sure the path to the rvc directory is correct, and of you go
After you started VSAN Observer, just connect to it via port 8010 on your vCenter Server, or add an exception for port 8010 in your Windows firewall to access VSAN Observer remotely, like described in Eriks’ blog
Enjoy