Due to my extreme busy schedule I haven’t blogged for a while. Besides studying for VCDX and preparing for VMworld I’m also involved in a couple of projects. One project is designing and implementing a vSphere 4 virtual infrastructure. The VI will host an Exchange 2010 environment. Due to the size of my client’s environment, [...]

I’m currently reviewing a design of a new virtual infrastructure. The VI uses multiple 10GB links to connect to a very large HP Lefthand san. I’m more a Fibre Channel guy, but I believe that this solution will smoke most mid-range FC-sans. I cannot wait to deploy the VI on the SAN. But I need [...]

When it comes to IO performance in the virtual infrastructure one of the most recommended “tweaks” is changing the Queue Depth (QD). But most forget that the QD parameter is just a small part of the IO path. The IO path exists of layers of hardware and software components, each of these components can have [...]

Some of my customers use HP Continuous Access to replicate VM data between storage arrays. Lately a couple of LUN balancing powershell- and Perl scripts were introduced in the VMware community. First of all, there is nothing wrong with those scripts. For example, Justin Emerson wrote an excellent script that balances the active paths to [...]