The DEBUG statement defines whether JES2 will record and monitor specified JES2 activities. The information recorded as a result of selecting this option can only be made available through a dump of the JES2 address space.

Performance Considerations: Be aware that if you specify CKPT=, or VERSION= parameters, in a production environment, specifying Yes on these options will affect JES2 performance because it causes JES2 to use noticeably more processor cycles.