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

When RDF is not running, the STATUS RDF report indicates why. For example, the report might
indicate that the subsystem has never been started, or that it has crashed. The report also indicates
where processing resumes in the TMF audit trail when RDF is restarted.
When the BREAK key is pressed while the STATUS RDF command is executing with the PERIOD
option (which requests repeated displays at a specified interval), the break takes effect within one
second rather than waiting until the end of the current interval.
Using RDF Status Data to Control TMF Audit Dumping
You can use the STATUS RDF command to determine when the RDF extractor has finished processing
the audit file that TMF wants to dump. The TMF/RDF trail listed for the extractor in the STATUS RDF
display indicates the TMF audit trail file that the RDF extractor is currently processing.
Approximately 30 seconds after the STATUS RDF display shows that the extractor’s sequence value
is greater than the number of the audit trail that TMF wants to dump, it is safe to mount the tape
and let TMF dump the audit trail if one is dumping to tape and not to disk.
Changing Configuration Attributes
After RDF starts, you can change the following configuration attributes online as the need arises:
• The priority at which each RDF process runs
• The EMS log
• RETAINCOUNT
• PURGETIME (altering this attribute causes the purger to perform a purge pass immediately)
• UPDATERDELAY
• UPDATEROPEN
These are the only configuration attributes that can be altered while RDF is running. To change
any other configuration attributes, you must first stop RDF or UPDATING as directed in “Restarting
RDF” (page 127).
To change any of the attribute values listed above, you start RDFCOM and use the ALTER command.
ALTER is a restricted command; it can be issued only by members of the super ID group. See the
description of the ALTER command in Chapter 8 (page 176).
Process Priority
All configured RDF processes should run at a priority greater than that of any application process.
Furthermore, the RDF processes should run at priorities relative to one another:
• On the primary system, the monitor and extractor processes can run at the same priority but
it is recommended that you set the extractor’s priority slightly lower than that of the monitor.
• On the backup system, the receiver process should run at a higher priority than any updater
process.
The STATUS RDF display shows the priority at which each RDF process is running. Suppose this
display indicates that the monitor currently runs at a priority of 165. To change its priority to 170,
use the ALTER command:
]ALTER MONITOR PRIORITY 170
EMS Logs (Collectors)
In an RDF configuration, two EMS logs (collectors) exist: one at the primary system and the other
at the backup system. The log on the primary system is used by the monitor, RDFCOM, and extractor
and RDFNET processes. The log on the backup system is used by the receiver, updater, and purger
processes.
108 Operating and Monitoring RDF