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Not supported means that it does not work?

24 November 2011
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Reading Time: 2 minutesIn previous posts related to vSphere 5 upgrade, I’ve talked several time about the HCL and his relevance. For a production environment, have a completed supported configuration, in each parts (hardware, software, firmware, …) IMHO is mandatory. But “not supported” not always means “not working”. There are different scenarios with an “unsupported configuration”:

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Upgrading to ESXi 5 vs. doing a Fresh Install

23 November 2011
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Reading Time: 3 minutesIn a vSphere upgrade process, there are two different approach for the host upgrade: a fresh re-install or a in-line upgrade. In the VMware site there is an interesting post about this choice. The differences between an upgraded host and a freshly installed host are:

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Virtual CPU and Virtual Cores

22 August 2011
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Reading Time: 2 minutesIn a physical environment usually the term CPU is used to refer to the physical package (or socket). The real processing unit inside this package are called cores (and not that each core can have inside more ALU and can be seen as more logical cores with hyper-threading feature). More CPU usually define a SMP system, more cores a multi-core CPU, more CPU each with more cores a complex system (usually the NUMA architecture is used in this case). In a virtual enviroment the term vCPU is used to refer to a core assigned to […]

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