This will just be a quick post to cover the VCAP-DCA objective around creating alarms to monitor DRS and DPM enabled clusters. vCenter allows you to create alarms to monitor…
Distributed Power Management (DPM) is a feature that allows a DRS-enabled cluster to power ESXi hosts on or off based on resource usage requirements. In order to bring a ESXi…
This post is intended to cover a couple of closely linked VCAP-DCA objectives. Namely, Calculating Available Resources and Sizing Virtual Machines based on Application Workload. Calculating Available Resources There are…
I ran into this issue in my vSphere 5.5 lab. After starting up my vCenter Server Appliance, and attempting to log in using the web client, I received this error:…
This post is intended to cover the topics on the VCAP-DCA blueprint relating to tuning virtual machine configurations, with a focus on memory, CPU, network and storage settings. As a…
ESXi 5 allows virtual machines to use large memory pages (Memory pages of 2MB). There can be a performance benefit for Guest OS and applications that are requesting the use…
Like my previous posts on tuning CPU, memory and network resources, this post is intended to cover the corresponding VCAP-DCA objective, this time focusing on host storage configuration. The main…
You can set or change a number of advanced attributes for you ESXi hosts, virtual machines and clusters, to give you a lot of granular control over your vSphere infrastructure.…
This post will have a look at the topic of tuning ESXi host CPU configuration, in relation to the VCAP-DCA objective of the same name. In the vSphere 5 Performance…
The vSphere 5 best practices performance guide covers a few topics in relation to tuning host network performance, some of which I’ll briefly cover in this post aimed at covering…