You can forward the vCenter Server Appliance log files to a remote syslog server to conduct an analysis of your logs.
Note:
ESXi can be configured to send log files to a
vCenter Server rather than storing them to a local disk. The recommended maximum numbers of supported hosts to collect logs from is 30. See http://kb.vmware.com/s/article/2003322 for information on how to configure
ESXi log forwarding. This feature is intended for smaller environments with stateless
ESXi hosts. For all other cases, use a dedicated log server. Using
vCenter Server to receive ESXi log files might impact
vCenter Server performance.
Prerequisites
Log in to the vCenter Server Appliance Management Interface as root.