VCAP-DCA 5

I’ve written previously about working with the ESXi firewall, including changing rules and setting security levels. This post will have a look at troubleshooting the ESXi firewall. You can use…

My previous article covering the VCAP-DCA objectives looked at analysing a vSphere environment to determine which admission control policy to use on a HA cluster. To do so however, you need…

I’ve written about HA admission control recently, in this post, so there will be a little bit of overlap here. When choosing an admission control policy for a particular cluster,…

This will be a short post to cover the VCAP-DCA objective around understanding the interactions between vSphere HA and DRS. When both HA and DRS is enabled, the result will…

You can monitor your cluster for HA related issues by setting up alarms. The are a number of default alarms, including these cluster alarms: Cannot find master – Default alarm…

This post is intended to cover the VCAP-DCA objective around configuring HA redundancy. This will look at configuring the management network, configuring datastore heartbeats, and will take a look at…

One of the main configuration tasks in enabling Fault Tolerance functionality is to enable FT logging. Using the vSphere client, this is the same process as enabling vMotion. There are…

Before going into configuring customized isolation response settings, it’s worth doing a quick recap on VMware HA and seeing what triggers an isolation response. As explained in the vSphere Availability…

Before we are able to test FT, we need an FT enabled virtual machine. After confirming that all the pre-requisites for FT are in place, you can then protect a…

Where vSphere HA will restart a virtual machine in the event of a host failure, vSphere Fault Tolerance goes a step further in that it provides continuous availability for virtual…