Replicating a production system to a CBU system

Last time we upgraded hardware it was cheaper to buy a CBU system for disaster recovery than to have a contract with IBM to use one of their DR facilities. When we had that new production hardware and CBU installed we had our Sirius consultant do the initial load of our production system to the CBU. Since then we have installed PTFs on the CBU as we installed them on the production system. We also would restore a subset of files and all application changes on a regular basis. Now we have moved our production system to 7.3 but the CBU is still at 7.1. Still keeping it patched but now its time to get it up to 7.3 also. We want to do a full system save on the production system and restore it to the CBU but know that this will mess up the hardware (mostly COMM lines) configuration, network setup and license codes. Does anyone happen to have a document of all the things we would need to document on the CBU system and then update those settings after we restore the production system backup? Or if there is an IBM Redbook or manual on doing this

Thanks
Mike Cunningham

________________________________
This email may contain confidential information about a Pennsylvania College of Technology student. It is intended solely for the use of the recipient. This email may contain information that is considered an "educational record" subject to the protections of the Family Educational Rights and Privacy Act Regulations. The regulations may be found at 34 C.F.R. Part 99 for your reference. The recipient may only use or disclose the information in accordance with the requirements of the Federal Educational Rights and Privacy Act Regulations. If you have received this transmission in error, please notify the sender immediately and permanently delete the email.