Unit 4, Section 6: Log, statistics, and SNAP calls

This video describes the following service calls:

LOG: This call is an explicit call interface that permits a program to write desired data to the log.
STAT: This call is of primary interest to IMS DBAs and System Programmers who are attempting to diagnose and correct IMS database performance problems.
SNAP: This call 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.

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