CRM 2007 Dual Stack Split

Hi All,

I am planning to perform dual stack split of CRM 2007 central system. I checked in SWPM, there are 2 options, move JAVA DB, Keep DB. What is the difference between these two. Also please advise the high level steps to perform the complete dual stack split and I want to keep the java instance. I found http://scn.sap.com/docs/DOC-25162 but it looks like completely removing the Java instance, but I want to keep it. Please advise.

Thanks,

Kavitha Rajan.