GT.M tools enable you to verify and maintain database integrity. As described in the "Maintaining Database Integrity" chapter, database integrity refers to a state of physical consistency in the database when all of the globals and pointers are correct, thereby making all data accessible. The "Maintaining Database Integrity" chapter describes how to use MUPIP INTEG and DSE to detect and repair integrity problems, and supplies procedures for avoiding such problems.

A facility exists to automatically detect, repair, and recover from certain errors in shared memory. These errors can result from the abnormal terminations of processes, certain input and output conditions, and internal system errors.