I don't know of any special requirements for the Provisioning Manager as it relates to booting iSeries and eSeries. All of the standard PM documentation should apply. Are you running into any issues or do you have any particular concerns related to these systems?
The only concern I have is that we have no hands on experience of provisioning onto the IBM kit. We are due to rollout to a client (with IBM kit) shortly who has a RDM solution in place. I just wanted to get some information from the field as I am assuming that the BladeLogic PM solution will not be as seamless as the existing RDM solution. Therefore it would be useful to speak with or get information from consultants/clients who have implemented PM with IBM hardware.