Evaluate the value of the XCF MAXMEMBER parameter

This parameter controls the maximum number of XCF group members that can be created. The value must be large enough to process a restructure job that restructures a database. Fast Path Online Restructure/EP creates the following XCF group members:

• One for the database being restructured
• One for each IMS control region in the data sharing environment
• One for the restructure job

• One for each IFP that is used during the restructure (the maximum number is set using the IFP_LIMIT keyword, where the default value is 4)

  The default number of IFPs for a Fast Path Online Restructure/EP job is 4.

For example, if the job uses 4 IFP regions (default) to restructure a database in a 5 way IMS data sharing environment, the minimum value of MAXMEMBER must be 11. This is calculated as follows:

1 member for the database + 1 member for the job + 5 members for the IMS systems + 4 members of the IFP regions = 11.

If the MAXMEMBER value is not large enough, you might receive the following message BMC115102C.