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

Updaters cannot always respond immediately to a STOP RDF command. If an updater has audit
information queued for the disk process, the updater must wait until all of that information is
processed before it can shut down.
If all else fails, you can shut down the individual RDF processes manually. When doing that,
you must first stop the extractor on the primary system, then stop all updaters on the backup
system, stop the purger on the backup system, and finally stop the receiver on the backup system.
The easiest way to do this is to issue a series of commands of this form:
STATUS *,PROG RDF-software-loc.procname, STOP
CAUTION: Issuing this command in this situation is only safe, however, if this is the backup
system for a single RDF environment.
RDF must be in the “started” state with UPDATE ON to issue a STOP RDF, DRAIN or STOP
RDF, REVERSE command. In addition, entering either command under any of these conditions
results in an error:
• on the backup system
• while RDF is stopping due to a stop TMF
• while a stop-update-to-timestamp operation is pending
• while a SQL DDL operation with SHARED ACCESS is being processed
Examples
To request RDFCOM to stop RDF, enter:
]STOP RDF
To request RDFCOM to replicate all audit records up to the time the command was issued, and
bring RDF to a controlled stop, enter:
]STOP RDF, DRAIN
To request RDFCOM to replicate all audit records up to the time the command was issued, and
run the configured reverse trigger program, enter:
]STOP RDF, REVERSE
STOP SYNCH
The STOP SYNCH command is used as part of the online database synchronization protocol.
STOP SYNCH
Where Issued
Primary system.
Security Restrictions
You can issue the STOP SYNCH command if you are a member of the super-user group and
have a remote password from the RDF primary system to the backup.
RDF State Requirement
You can issue the STOP SYNCH command only when RDF is running.
Usage Guidelines
You must wait until the preceding load or backup operations are done before issuing this
command.
See the descriptions of online database synchronization in Chapter 7 (page 155) for the proper
use of this command.
RDFCOM Commands 237