- Vmkernel - /var/log/vmkernel - records activities related to the virtual machines and ESX server.
- Vmkernel Warnings - /var/log/vmkwarning - records activities with the virtual machines.
- Vmkernel Summary - /var/log/vmksummary - Used to determine uptime and availability statistics for ESX Server; human-readable summary found in /var/log/vmksummary.txt
- ESX Server host agent log - /var/log/vmware/hostd.log - Contains information on the agent that manages and configures the ESX Server host and its virtual machines (Search the file date/time stamps to find the log file it is currently outputting to).
- Service Console - /var/log/messages - Contain all general log messages used to troubleshoot virtual machines on ESX Server.
- Web Access - /var/log/vmware/webAccess - Records information on Web-based access to ESX Server.
- Authentication log - /var/log/secure - Contains records of connections that require authentication, such as VMware daemons and actions initiated by the xinetd daemon.
- VirtualCenter agent - /var/log/vmware/vpx - Contains information on the agent that communicates with VirtualCenter.
- Virtual Machines - The same directory as the affected virtual machine's configuration files; named vmware.log - Contain information when a virtual machine crashes or ends abnormally.
A ver nice list of logfiles for esx found on http://www.vmwarewolf.com/which-esx-log-file/
