HP Insight Manager forwards traps to the trap adapter and the traps are then converted to alerts. Dynamic model can be used to allow the IP Manager to define problems and events for drive health. If you want to poll for data, extend the discovery process with probes for the MIBs that cover drive health.
You can extend IP Manager with dynamic model to define the new problems and events, and use traps from HP Insight Manager to update data in the IP server instead of creating notifications.