Location of vCenter Server Logs:
The vCenter Server log files are on the vCenter Server system:
• Location for vCenter Server on Windows 2008/2012:
• Location for VMware vCenterTM Server ApplianceTM:
Subdirectories exist for vCenter Server components, such as vCenter Service, VMware vCenterTM Single Sign-OnTM, vCenter Inventory Service, and vSphere Web Client.
By default, vCenter Server places its log files in a default location. The location is determined based on where the software is installed.
For more information about the location of vCenter Server log files, see VMware knowledge base article 2110014 at http://kb.vmware.com/kb/2110014.