As with any production system, VSAN will require periodic maintenance. Drivers and system firmware will need to be updated, new releases of vSphere will ship, and various configuration changes or hardware updates will need to be performed. You may want to expand or contract the amount of storage available to VSAN, add or subtract nodes, or make various other modifications to your infrastructure.
As VSAN is a converged infrastructure solution that merges the compute and storage aspects of your IT environment, there are special considerations for VSAN maintenance. When performed properly, VSAN maintenance operations will proceed in a seamless way and be free of any outage-causing or other generally deleterious events.
There are numerous VSAN-specific maintenance tasks.
Addition of new nodes is not covered here via a recipe, since most of the information is redundant against Chapter 2, Initial Configuration and Validation of Your VSAN Cluster. To reduce the duplication of content...