I’ve been receiving a lot of questions around slot sizes lately. Although I point everyone to my HA Deepdive post not everyone seems to understand what I am trying to explain. The foremost reason is that most people need to be able to visualize it; which is tough with slot sizes. Just to freshen up an outtake from the article: [...]

Of course by now we have all read the excellent and lengthy posts by Chad Sakac on ALUA. I’m just a simple guy and usually try to summarize posts like Chad’s in a couple of lines which makes it easier for me to remember and digest. First of all ALUA stands for “Asymmetric Logical Unit Access”. As Chad explains and [...]

This has always been a hot topic, HA and Slot sizes/Admission Control. One of the most extensive (Non-VMware) articles is by Chad Sakac aka Virtual Geek, but of course since then a couple of things has changed. Chad commented on my HA Deepdive if I could address this topic, here you go Chad. Slot sizes Lets start with the basics. [...]

I just refreshed my HA Deepdive page. I had it on my “to do” list for a long time but never got to it. Well it took me a couple of evenings but it’s finally done and I’m happy about it. I just hope you guys find the refresh useful and enjoy it. I also flushed all the comments on [...]

After reading Aaron‘s excellent articles(1, 2) on Scott Lowe’s Blog I remembered a discussion I had with a couple of co-workers. The discussion was about VMware HA Cluster design in Blade Environments. The thing that started this discussing was an HA “problem” that occurred at a customer site. This specific customer had 2 Blade chassis to avoid a single point [...]

I’ve just created a new Page. This page will also deal about VMware HA. I threw all my “deepdive” posts into one page which makes it easier to find for you guys and search engines. But most important, easier to maintain. When I’ve got more technical in-depth information I will add it to the page. Check it out and let [...]