I did not even knew it was possible but on the VMTN Community Forums user PatrickD revealed a workaround to set a different block size for your local VMFS. Of course the question remains why you would want to do this and not create a dedicated VMFS for your Service Console and one for your VMs. Anyway, it’s most definitely [...]

I wrote about block sizes a couple of times already but I had the same discussion twice over the last couple of weeks at a customer site and on Twitter(@VirtualKenneth) so lets recap. First the three articles that started these discussions: vSphere VM Snapshots and block size, That’s why I love blogging… and Block sizes and growing your VMFS. I [...]

I received a whole bunch of questions around my two latest posts on HA admission control. I added all the info to my HA Deepdive page but just in case you don’t regularly read that section I will post them here as well: The default of 256Mhz when no reservations are set is too conservative in my environment. What happens [...]

Can I avoid large HA slot sizes due to reservations without resorting to advanced settings? That’s the question I get almost daily. The answer used to be NO. HA uses reservations to calculate the slot size and there’s no way to tell HA to ignore them without using advanced settings pre-vSphere. So there is your answer: pre-vSphere. With vSphere VMware [...]

No, I am not exaggerating. Alan Renouf truly is the uncrowned king of PowerCLI. Although I’ve seen some amazing scripts from other people as well Alan always seems to bring that little extra to make him stand out. No this is not an Alan Renouf appreciation blog article, although he deserves one, this article is about his two latest additions. [...]

This weeks topic of the VMware Communities Roundtable was the vStorage API. It was most likely one of the most technical roundtables in months. Especially the part about the Virtual Disk Development Kit (aka VDDK) was educational! If you missed the episode you can download it here or subscribe to the podcast with iTunes here! Here are the links that [...]

Something that I noticed over the last months while doing design reviews is that hardly anyone documents decisions in a design. Most designs I review are physical designs, which is understandable as most IT people are technical people who could not care less about logical designs. I am perfectly fine with that, although I do recommend taking a different approach, [...]