WMI polling in 5.5

Hi there,

I have been reading about all of the new features in 5.5 - and they all look great!

Our production Solar Winds environment is all SNMP polling, not WMI. My questions are:

1) To benefit from the latest features do i have to switch to WMI polling

2) I see that is deletes all of the node history. This is unacceptable within our organisation as historical data is used every day - is there any way around this?

3) When monitoring blade centres - how does this work? is the blade centre added as a node? i cannot find where to add SNMP in the iDRAC? only have traps...

Thanks

Ian