RDF System Management Manual for J-series and H-series RVUs (RDF 1.10)

Takeover Delays and Purger Restarts...................................................................................283
Takeover Restartability......................................................................................................283
Takeover and File Recovery...............................................................................................283
The Effects of Undoing Network Transactions.......................................................................284
Takeover and the RETAINCOUNT Value.............................................................................286
Network Configurations and Shared Access NonStop SQL/MP DDL Operations...........................286
Network Validation and Considerations...................................................................................287
RDF Reinitialization in a Network Environment..........................................................................287
Network Master Subsystem Initialization..............................................................................287
Non-Network Master Subsystem Initialization.......................................................................287
RDF Networks and ABORT or STOP RDF Operations.................................................................287
RDF Networks and Stop-Update-to-Time Operations..................................................................288
Sample Configurations..........................................................................................................288
Sample Network Master Configuration...............................................................................288
Sample Non-Network Master Configuration........................................................................289
RDFCOM STATUS Display.....................................................................................................290
15 Process-Lockstep Operation....................................................................292
Starting a Lockstep Operation................................................................................................292
The DoLockstep Procedure.....................................................................................................293
Including the DoLockstep in COBOL85 Applications.............................................................293
Invoking DoLockStep by Way of TAL...................................................................................293
DoLockStep Execution.......................................................................................................293
The Lockstep Transaction........................................................................................................294
RDF Lockstep File..................................................................................................................294
Multiple Concurrent Lockstep Operations.................................................................................295
Lockstep and Auxiliary Audit Trails..........................................................................................295
The Lockstep Gateway Process...............................................................................................295
NAME...........................................................................................................................295
PROGRAM.....................................................................................................................295
STARTUPMSG..................................................................................................................296
AUTORESTART.................................................................................................................296
Disabling Lockstep................................................................................................................296
Reenabling Lockstep..............................................................................................................296
Lockstep Performance Ramifications.........................................................................................296
Lockstep and Auxiliary Audit Trails..........................................................................................297
Lockstep and Network Transactions.........................................................................................297
Lockstep Gateway Event Messages.........................................................................................297
16 NonStop SQL/MX and RDF...................................................................307
Including and Excluding SQL/MX Objects...............................................................................307
Creating NonStop SQL/MX Primary and Backup Databases......................................................307
Creating a NonStop SQL/MX Backup Database From an Existing Primary Database.....................310
Online Database Synchronization With NonStop SQL/MX Objects.............................................312
Creating the Fuzzy Copy on the Primary System..................................................................312
Creating the Fuzzy Copy on the Backup System...................................................................314
Offline Synchronization for a Single Partition............................................................................314
Directly From the Primary to the Backup..............................................................................314
Indirectly From the Primary to the Backup By Way of a Temporary File....................................315
Backup Partition Does Not Already Exist.............................................................................315
Online Synchronization for a Single Partition............................................................................315
Correcting Incorrect NonStop SQL/MX Name Mapping............................................................316
Primary and Backup ANSI Catalog Are the Same................................................................316
Primary and Backup ANSI Schema Names Are Not the Same...............................................316
Schema Subvolume Names Are Not the Same.....................................................................316
Guardian Filename Is Incorrect for Partition.........................................................................316
16 Contents