OVNM 5.3 - Operations Agent for NonStop Object Reference Guide
Threshold Policies 113 
2-17 RDF 
RDF monitors the changes made to a production database on a local (primary) system and maintains a copy of 
that database on one or more remote (backup) systems. It applies changes to the backup database as soon as 
they are detected on the primary system; RDF keeps the backup database continuously up to date with changes 
made by business applications on the primary system. You are therefore able to switch your business operations 
from the primary system to the backup system with minimal interruption and loss of data in the event of planned 
or unplanned outages of the primary system.  
The thresholds in this subsystem allow you to monitor the activities of RDF to make sure it is operating as you 
expect to reduce the chance of any data loss or extended RDF recoveries. 
2-17-1 OBJECT CLASS: EXTRACTOR 
Policy 
Description 
Operators Allowed 
ERROR 
This threshold allows you to test the value of the 
ERROR returned by RDFCOM. 
In case the 
RDFCOM returns a value of all asterisks 
(****), OVNM interprets it as 9999 (four nines). 
To track occurrence of this error, you can test for “= 
9999” or “Greater than 9998” or an equivalent 
Boolean operation. 
•  Equal to <value1> 
•  Not equal to <value1> 
•  Less than <value1> 
•  Less than or equal to <value1> 
•  Greater than <value1> 
•  Greater than or equal to <value1> 
• 
Greater than <value1> and less than 
<value2>  
•  Less than <value1> or greater than 
<value2> 
PROCESS IS DOWN  This threshold will notify you if the process is not 
running. 
No operator. 
RTD TIME 
This allows you to test the value of the RTD time. 
This value is specified in Seconds. 
•  Equal to <value1> 
•  Not equal to <value1> 
•  Less than <value1> 
•  Less than or equal to <value1> 
•  Greater than <value1> 
•  Greater than or equal to <value1> 
• 
Greater than <value1> and less than 
<value2>  
•  Less than <value1> or greater than 
<value2> 
2-17-2 OBJECT CLASS: MONITOR 
Policy 
Description 
Operators Allowed 
ERROR 
This threshold allows you to test the value of the 
ERROR returned by RDFCOM. 
In case the RDFCOM returns a value of all asterisks 
(****), OVNM interprets it as 9999 (four nines). 
To track occurrence of this error, you can test for “= 
9999” or “Greater than 9998” or an equivalent 
Boolean operation. 
•  Equal to <value1> 
•  Not equal to <value1> 
•  Less than <value1> 
•  Less than or equal to <value1> 
•  Greater than <value1> 
•  Greater than or equal to <value1> 
• 
Greater than <value1> and less than 
<value2>  
•  Less than <value1> or greater than 
<value2> 
PROCESS IS DOWN 
This threshold will notify you if the process is not 
running. 
RDF NOT ACTIVE  This threshold will notify you if the RDF environment 
is not active. 
• 
Equal to <value1> 
•  Not equal to <value1> 
STATE IS NORMAL 
This allows you to test for an RDF STATE that is 
NORMAL. 
•  Equal to <value1> 
•
  Not equal to <value1> 
Threshold Policies 










