Probe Control Table

When your code calls FFSTProbe, FFST generates the requested outputs such as dumps or log entries. These outputs can be dynamically controlled by defining an entry in the Probe Control Table (PCT). Options that are specified in a PCT entry override all other options. You can use PCT entries to do the following:

• Control the individual calls to FFSTProbe by enabling or disabling them
  
• Specify whether FFST and System Dump information is to be collected
  
• Specify whether system process information is to be collected
  
• Specify whether system environment information is to be collected
  
• Dynamically request additional system information that is not requested in the call to FFSTProbe.

Each PCT entry consists of five identifiers:

• DMI_vendor_tag 
  DMI_tag
  
  DMI_revision
  
  Module identifier name
  
  Probe ID

  The entries in the PCT describe what is to be done on the call to FFSTProbe:

  • You cannot use duplicate entries in PCT 
    You cannot use wildcards for identifiers

    The PCT mechanism looks for specific entries that match all five identifiers. If the system cannot find a match for the entry, it ignores the probe control entry. The PCT entry makes the final decision about what to do. The entry can overwrite parameters that are specified in the configuration and change the actual call to FFSTProbe.

    FFST provides no default PCT entries.

    Note: It is important to understand that the Probe Control Table is used to control individual calls to FFSTProbe and that Probe Suppression is used for an entire group of calls within a product.

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