We will again start with the logging files as we we did in the previous chapters. The log files always provide a distinctive and systematized way of beginning troubleshooting. For storage issues, the most important vSphere host log files are
vmkernel.log. We briefly reviewed vSphere hosts and vCenter Server log files in Chapter 1, The Methodology of Problem Solving.
hostd.log files contain the logs of virtual machines, different events and tasks of vSphere hosts, vpxa agent, vCenter Server, and vSphere client logs. Logs related to SDK connections are also logged in these files.
Storage I/O Control (SIOC) related problems are logged into