By default, tasks in vCenter (such as snapshot deletion) will time out in 900 seconds (15 minutes). If you’d like to modify this setting, it can be done easily…
Modify the vpxd.cfg (C:/Documents and Settings/All Users/Application Data/VMware/VMware VirtualCenter/vpxd.cfg) file by adding:
<vpxd>
…
<task>
<timeout>timeout_value</timeout>
</task>
….
</vpxd>
The timeout value is specified in seconds.
Note: You must restart VirtualCenter Server after making changes to the vpxd.cfg file.

