VMworld 2017 – Warm up part 2

Monday is day one before the official start of VMworld. Ideal to get organized and to do some practice in the Hands-on-Labs (HOL).

Lab environment

Labs are well organized and the staff is very helpful. A staff member welcomes you at the entrance and leads you to your desk. They’ll assist you until you’ve successfully logged into your session. On Monday morning there is no rush yet and everything is calm. Continue reading “VMworld 2017 – Warm up part 2”

Rebalance your Resource Pools

VMware vSphere offers the ability to divide cluster resources into pools. There have been a lot of outstanding articles about resources. I want to emphasize especially the books written by Duncan Epping, Niels Hagoort and Frank Denneman.

Resource pools are a constant source of misconfiguration. Almost every cluster I see in the wild has some no-go’s configured. The most common reason is that RP are misunderstood as folders to organize VMs.

Do not use Resource Pools as folders

People keep thinking that if they leave all pools at “Normal” it wouldn’t be a problem. In fact it is a problem. Especially if the customer tried to organize his VMs into  hierarchical structures, resource pools can become very complicated to track and might do nasty things in times of contention. Continue reading “Rebalance your Resource Pools”