Unit 10, Section 4: Log, Statistics, and SNAP Calls

This video describes three more service calls:

• LOG: an explicit call interface that permits a program to write data to the log.

• STAT: most commonly used while developing or enhancing an IMS program in a test environment.

• SNAP: produces a dump of processor storage associated with database buffers and control blocks; the output from this call is only of interest to system programmers attempting to resolve an IMS software code defect.