It’s funny how sometimes something, in this case a vSphere feature, becomes a “trending topic” on any given day or week. Yesterday I was discussing admission control policies with Rawlinson Riviera (@punchingclouds) and he told me, no actually taught me, how to proper calculate a percentage for the percentage based admission control with keeping consolidation [...]

One of most frequent questions I receive is about mixing resource pools and virtual machines at the same hierarchical level. In almost all of the cases we recommend to commit to one type of child objects. Either use resource pools and place virtual machines within the resource pools or place only virtual machines at that [...]

Lately I have received many questions about the interoperability between HA and affinity rules of DRS and SDRS. I’ve created a table listing the (anti-) affinity rules available in a vSphere 5.0 environment. Technology Type Affinity Anti-Affinity Respected by VMware HA DRS VM-VM Keep virtual machines together Separate virtual machines No VM-Host Should run on [...]

There are some fundamental changes to vMotion scalability and performance in vSphere 5.0 one is the multi-nic support. One of the most visible changes is multi-NIC vMotion capabilities. In vSphere 5.0 vMotion is now capable of using multiple NICs concurrently to decrease lead time of a vMotion operation. With multi-NIC support even a single vMotion [...]