RDF/IMP and IMPX System Management Manual (RDF 1.3+)

Entering RDFCOM Commands
Compaq NonStop™ RDF/IMP and IMPX System Management Manual—522204-001
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Command Overview
purge AA000010 (it must keep AA000011 and AA000012 on disk). Thus, as long as
the RTD times of the extractors on the two backup systems are less than 24 hours apart,
the triple contingency protocol will work successfully.
Similarly, if you believe the two receiver processes will never be more than 36 hours
apart in their RDF processing and your image trail file sizes are such that approximately
20 rollovers occur every 24 hours, then you should set the RETAINCOUNT to 31 on
both backup systems.
Where Issued
Primary system only.
Security Restrictions
You can issue the SET PURGER command only if you are a member of the super-user
group.
RDF State Requirement
You can only enter SET PURGER commands if you have not already added the purger.
For further information, see the ADD command description.
Usage Guidelines
The SET PURGER command enters the parameter values specified for the purger in this
command into the RDF configuration table in memory. This table serves as an input
buffer only, and so these values do not affect the subsystem until they are applied to the
RDF configuration file with the ADD command.
Example
To configure a system-named purger process to run in CPUs 0 and 1 with a
RETAINCOUNT of 8, issue the following commands:
]SET PURGER CPUS 0:1
]SET PURGER RETAINCOUNT 8
]ADD PURGER
By default, in this example the purger process will run at a priority of 165.