The DFSRRC00 Parameters differ depending from the execution environment (BMP, DBB, JMP, ...). The symbols in the JCL might be different at different sites, but the meaning remains the same. Please have a look at the IMS Installation Guide Volume 2: System Definition and Tailering. You can use the following link to get there -
http://publib.boulder.ibm.com/infocente ... /index.jsp Look for the procedure descriptions, e.g. IMSBATCH is the name for the BMP. Right after the sample JCL in section IMSBATCH Procedure Parameters is a list of all applicable DFSRRC00 symbols for this execution environment, for which the meaning can be looked up in section Parameter Description in the same book.
This applies to IMS V9 or earlier.