Troubleshooting a vSphere Deployment
Jon Hall, Joshua Andrews · 2020
This chapter focuses on the information gathering and analysis for a vSphere environment, which are crucial to the identification of a problem. It covers some of the higher-level issues around the vCenter Server and ESXi hosts, such as services, overall monitoring, and health. VMware has an extensive list of the ports needed in the vSphere documentation under “Incoming and Outgoing Firewall Ports for ESXi Hosts” and “Required Ports for vCenter Server and Platform Services Controller.” Connectivity to a vCenter server and between vSphere components (PSC, hosts, postgres database) depends on correct authentication of the certificates used to secure the communications. One of the first steps for troubleshooting a new problem is examining the log files. Troubleshooting using log files also depends on having the time accurate (and synchronized) on the machines in environment.