HP StorageWorks Clustered File System 3.2.1 Windows Storage Server Edition Administration Guide (February 2006)

Appendix B: Error and Event Log Messages 203
Port 8940
Only one instance of PanPulse can be running on port 8940 on a server. If
another application is using that port or another instance of PanPulse is
started, the following error will be reported.
Unable to bind on port 8940. Please make sure that this is
the only copy of panpulse running on this server.