Often I receive the question why a virtual machine is not receiving resources while the ESXi host is lightly utilized and is accumulating idle time. This behavior is observed while reviewing the DRS distribution chart or the Host summary tab in the vSphere Client. A common misconception is that low utilization (Low MHz) equals schedule [...]

Recently I had to troubleshoot an environment which appeared to have a DRS load-balancing problem. Every time when a host was brought out of maintenance mode, DRS didn’t migrate virtual machines to the empty host. Eventually virtual machines were migrated to the empty host but this happened after a couple of hours had passed. But [...]

Maybe you already seen the tweets flying by, seen the posts on Facebook or just heard it at the water cooler but we finally published the eBook (Kindle) version of the HA and DRS deepdive book. Duncan has the low down on how the eBook came to life: http://www.yellow-bricks.com/2011/04/05/what-an-ebook-is-this-a-late-april-fools-joke/. We know that many who wanted [...]