RDF System Management Manual for H-Series RVUs (RDF 1.8)

Responding to Operational Failures...................................................................................................124
Communication Line Failures.......................................................................................................125
Processor Failures..........................................................................................................................125
Extractor Failure.......................................................................................................................125
Receiver Failure........................................................................................................................126
Updater Failure........................................................................................................................126
Purger Failure...........................................................................................................................126
RDFNET Failure.......................................................................................................................126
RDF State Transition Failure....................................................................................................126
TMF Audited Volume Failure.......................................................................................................127
TMF Subsystem Failure on the Primary System...........................................................................127
TMF Subsystem Failure on the Backup System............................................................................127
Volume Recovery Processing...................................................................................................128
Volume Recovery Failure.........................................................................................................128
File Recovery on the Primary System............................................................................................128
File Recovery on the Backup System.............................................................................................128
TMFCOM ABORT TRANSACTION With AVOIDHANGING Option on Primary System........129
Stopping RDF......................................................................................................................................129
Stopping RDF by Stopping TMF...................................................................................................130
Stopping RDF From the Primary System......................................................................................131
STOP RDF, DRAIN Operations................................................................................................132
Stopping RDF From the Backup System.......................................................................................132
Restarting RDF....................................................................................................................................133
Carrying Out a Planned Switchover...................................................................................................133
Standard Configurations...............................................................................................................133
Using a Reverse Trigger.................................................................................................................134
Reciprocal Configurations.............................................................................................................134
Takeover Operations...........................................................................................................................135
The RDF Takeover Operation........................................................................................................135
Phase One Undo Pass...............................................................................................................135
Phase Two Undo Pass...............................................................................................................135
Phase Three Undo Pass............................................................................................................136
Preparing for Takeover Processing................................................................................................136
Issuing the TAKEOVER Command...............................................................................................136
Monitoring Takeover Outcome......................................................................................................137
Takeover Failure............................................................................................................................137
Monitor Considerations...........................................................................................................137
Updater Considerations...........................................................................................................137
Takeover and File Recovery...........................................................................................................138
Checking Exception Files for Uncommitted Transactions............................................................138
Preparing for Application Processing on the Backup System.......................................................138
Restoring the Primary System.......................................................................................................139
Online Method of Resynchronizing the Primary Database.....................................................139
Offline Method of Resynchronizing the Primary Database.....................................................139
Reading the Backup Database.............................................................................................................140
Access to Backup Databases in a Consistent State..............................................................................140
RDF and NonStop SQL/MP DDL Operations....................................................................................141
Performing Nonshared Access DDL Operations..........................................................................142
Performing Shared Access DDL Operations.................................................................................142
Network Configurations and Shared Access NonStop SQL/MP DDL Operations.................143
RDF and NonStop SQL/MX Operations.............................................................................................143
Backing Up Image Trail Files..............................................................................................................143
Making Online Dumps With Updaters Running...............................................................................144
Doing FUP RELOAD Operations With Updaters Running...............................................................144
Exception File Optimization...............................................................................................................145
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