The AP does indeed communicate directly with the DB, as well as use MSMQ and SWIS to the main poller.
Page 9 on the Scalability Guide may be useful: http://www.solarwinds.com/documentation/Orion/docs/ScalabilityEngineGuidelines.pdf
The AP does indeed communicate directly with the DB, as well as use MSMQ and SWIS to the main poller.
Page 9 on the Scalability Guide may be useful: http://www.solarwinds.com/documentation/Orion/docs/ScalabilityEngineGuidelines.pdf