Logs for an ESXi 5.1 host are grouped according to the source component:
/var/log/auth.log
: ESXi Shell authentication success and failure./var/log/dhclient.log
: DHCP client service, including discovery, address lease requests and renewals./var/log/esxupdate.log
: ESXi patch and update installation logs./var/log/lacp.log
: Link Aggregation Control Protocol logs./var/log/hostd.log
: Host management service logs, including virtual machine and host Task and Events, communication with the vSphere Client and vCenter Server vpxa agent, and SDK connections./var/log/hostd-probe.log
: Host management service responsiveness checker./var/log/rhttpproxy.log
: HTTP connections proxied on behalf of other ESXi host webservices./var/log/shell.log
: ESXi Shell usage logs, including enable/disable and every command entered./var/log/sysboot.log
: Early VMkernel startup and module loading.- /var/log/boot.gz: A compressed file that contains boot log information and can be read using zcat /var/log/boot.gz|more.
/var/log/syslog.log
: Management service initialization, watchdogs, scheduled tasks and DCUI use./var/log/usb.log
: USB device arbitration events, such as discovery and pass-through to virtual machines./var/log/vob.log
: VMkernel Observation events, similar tovob.component.event.
/var/log/vmkernel.log
: Core VMkernel logs, including device discovery, storage and networking device and driver events, and virtual machine startup./var/log/vmkwarning.log
: A summary of Warning and Alert log messages excerpted from the VMkernel logs./var/log/vmksummary.log
: A summary of ESXi host startup and shutdown, and an hourly heartbeat with uptime, number of virtual machines running, and service resource consumption./var/log/Xorg.log
: Video acceleration
Logs from vCenter Server Components on ESXi 5.1
When an ESXi 5.1 host is managed by vCenter Server 5.1, two components are installed, each with its own logs:
/var/log/vpxa.log
: vCenter Server vpxa agent logs, including communication with vCenter Server and the Host Management hostd agent./var/log/fdm.log
: vSphere High Availability logs, produced by the fdm service.
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