Ways to Collect Data

FFST takes care of storing the collected data in the error log and optional FFST dump. This information is available for viewing through use of the SYSLOG utility. For more information on error logs and the SYSLOG utility, see Viewing and Analyzing Error Log Entries.

User data could be data areas, control blocks, complete files, or any other form of data that could be used to determine the problem.

Two parameters on the FFST Probe function allow user-specified data to be collected:

• The pDmpUsrData parameter saves information in the FFST Dump. You can specify up to 30 items, each having a maximum size of 32 KB. For example, you use this parameter to save large control structures or buffers.

• The LogUsrData parameter save saves user data in the error log. The maximum amount of logged data is 2 KB. You need to determine what data you want as part of the 2 KB. For example, you use this parameter to save small items such as return codes, function names, or system names.