Checking for coherence

BCHECK checks whether realms which have been specified as part of a group actually belong to the same version, i.e. whether they are coherent. To do this, it reads from each realm specified the internal version number entered in the DBDIR and the time at which the last change was made (cf. “Consistency time stamp”) and compares these values with the values entered in the realm itself. Only those realms for which BCHECK establishes consistency with the DBDIR are coherent.

Following utility routine runs with BALTER and BREORG, coherency within an incremental check is not ensured.