hugopeeters

With the release of VI Toolkit v1.0, the bèta-cmdlet Get-VIServer has been renamed to Connect-VIServer, which more accurately describes the action. The opposite action is now also available in the form of Disconnect-VIServer. Every script you start with Connect-VIServer should end with Disconnect-VIServer if you’d like to keep the amount of open sessions to your Virtual Center Server to a minimum. And you do if you like having any sort of performance from your VC Server.

Here’s three ways you can make sure you don’t end up with unnecessary sessions:
http://www.peetersonline.nl/index.php/vmware/to-disconnect-viserver-or-not-to-disconnect/