Any infrastructure, once deployed, needs to be monitored for any performance changes during its life cycle. Continuously monitoring a vSphere infrastructure aids in further optimization so that you can meet service-level agreements and reduce operational costs. There are several methods and tools available, such as vRealize Operations Manager (vROPS) which, unlike other monitoring tools, does what VMware calls predictive analysis. It learns what is normal from an environment over time, provides recommendations, and allows for capacity planning. More information about vROPS can be found at https://www.vmware.com/au/products/vrealize-operations.html.
Performance monitoring is a larger topic and cannot be confined to a single chapter. This chapter primarily introduces you to the most commonly used monitoring tools: esxtop, vscsiStats, and vCenter...