I just finished installing vSphere ESXi 4.0 update 1, I used all the default settings. I expected that all my portgroups would inherit all their settings from the vSwitch that was configured during installation… unfortunately this is not the case as can be seen in the screenshots below. Default install with no redundancy: VM Network inherits from vSwitch: Management Network [...]

A question we receive a lot is what kind of zoning should be implemented for our storage solution? The answer is usually really short and simple: at least single initiator zoning. Single initiator zoning is something we have always recommend in the field (VMware PSO Consultants/Architects) and something that is clearly mentioned in our documentation… at least that’s what I [...]

Again an interesting discussion we had amongst some colleagues (Thanks Frank, Andrew and Craig! Especially Craig as most text below comes from The Resource Master). The topic was CPU/Memory reservations and more specifically the difference in behavior of these two. One would expect that both a CPU and Memory reservation would have the same behavior when it comes to claiming [...]

I was just reading Scott Drummonds article on Memory Compression. Scott explains where Memory Compression comes in to play. I guess the part I want to reply on is the following: VMware’s long-term prioritization for managing the most aggressively over-committed memory looks like this: Do not swap if possible.  We will continue to leverage transparent page sharing and ballooning to [...]

We had an interesting discussion on one of the internal mailing lists this week. Someone asked what the general opinion was about disabling Tech Support. Of course some said disabling should not be a problem, but many also disagreed. The reason for this is simple: Support. When Tech Support is disabled it removes the option to login to the console [...]