If you often create Architecture Diagrams using Microsoft Visio or OmniGraffle, then you are always in the look for new stencils and shapes that you can reuse into your design. VMturbo has just released a good Datacenter Stencils that work for both Microsoft Visio and OmniGraffle. The free VMturbo  Topology Stencils covers all of the following:

• Host
• Cluster
• Virtual & Physical SAN
• Thin & Thick Provisioned Datastores
• Public, Private, Hybrid, & Virtual Datacenter Clouds
• And More!

Below is a teaser of what these stencils look like. If you want to download these stencils, then you can get it at: http://info.vmturbo.com/NI00yZpg0003ydH0MZ6011g