Figure 6-2 Synchronized Databases During RDF Operations
Figure 6-3
shows synchronized databases where the application is running on \PRIMARY and
the transaction data for the three new transactions has been applied to the backup database.
Figure 6-3 Synchronized Databases, No Outstanding Audit
Figure 6-4
shows synchronized databases where TMF has just been shut down. The databases
are synchronized because RDF applies all audit generated on \PRIMARY to the backup database
before the subsystem reads the TMF shutdown record and subsequently shuts down (the databases
are not, however, logically identical until RDF has actually shut down).
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Maintaining the Databases