It is important that you obtain information about every MAS member and MVS™ system in the XCF group. Perform the following:

• Collect the JES2-provided dump of the failing member (which includes a dump of the JESXCF address space and associated data space on this MVS system)
• Collect SYSLOGs of the systems on which the members of the MAS are
• Request a dump of all other MAS members and of the JESXCF address spaces and their data spaces on the MVS systems where the members are
• CTRACE JESXCF data for every member.

  See z/OS MVS Diagnosis: Tools and Service Aids for further information on collecting JESXCF CTRACE data.