During a successful cluster installation of PureMessage for Microsoft Exchange, a specific error may be recorded multiple times in the event log. The error data and message may vary to some extent, but it will always include the following:
Event ID = 1058
Event source = ClusSvc
You do not need to do anything, as this does not indicate problems with the installation. It is an issue which arises from the way in which events are logged.
Fewer errors may be logged if you install passive nodes before active nodes.