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

STATUS *, PROG RDF-software-loc.*, STOP
If a state transition failure occurs during execution of a STOP UPDATE command and the
operation appears to be stalled, manually stop all of the RDF updaters by issuing the following
command on the backup system:
STATUS *, PROG RDF-software-loc.RDFUPDO, STOP
CAUTION: Issuing this command in this situation is only safe, however, if this is the backup
system for a single RDF environment.
TMF Audited Volume Failure
RDF can recover from a failure of a TMF audited volume on the primary or backup system. If
the volume is successfully recovered by volume recovery, then you do not have to perform any
special RDF procedures.
TMF Subsystem Failure on the Primary System
RDF can recover from a TMF failure on the primary system if the TMF volume recovery operation
is successful after the failure. To perform this recovery:
1. Stop RDF on the primary system by entering the following command through RDFCOM:
]STOP RDF
2. Restart TMF by entering the following command sequence through TMFCOM:
~DISABLE DATAVOLS *
~START TMF
Notice that these commands prevent any disk volumes on the local system from being
enabled for TMF operations before starting the subsystem.
3. Reenable all pertinent disk volumes for TMF operations by entering the following command
through TMFCOM:
~ENABLE DATAVOLS *
When this command is executed, TMF performs its volume recovery operation on the audited
volumes, and RDF reads the audit during this operation.
4. Restart RDF through RDFCOM by entering:
]START RDF
NOTE: Normally you start RDF before starting your applications. If the TMF subsystem
has crashed on the primary system, however, characteristics of the TMF audit trail after the
TMF subsystem is restarted require that you restart your applications before restarting RDF.
This allows audit information to be generated in the MAT and any auxiliary audit trails
involved in your RDF environment. At that point you restart RDF.
If you started RDF before starting your applications, you might notice that the auxiliary
extractor continues to read the same data over and over again without moving forward. To
correct that situation, you merely stop and then restart the RDF subsystem.
5. Restart your applications.
TMF Subsystem Failure on the Backup System
RDF can recover from a TMF failure on the backup system if the TMF volume recovery operation
is successful after the failure. To perform this recovery:
1. From the primary system, stop updating of the backup database by entering this command
through RDFCOM:
]STOP UPDATE
Responding to Operational Failures 127