WarningSiteCount must be less than MaxSiteCount. If no warning threshold is desired, provide "0" as the WarningSiteCount ...

WarningSiteCount must be less than MaxSiteCount. If no warning threshold is desired, provide "0" as the WarningSiteCount value. The default value for these properties are as follows: MaxSiteCount defaults to 15000, WarningSiteCount defaults to 9000.  In order to set MaxSiteCount to a value less than the default WarningSiteCount, you must provide both parameters.