Sysview for Db2 forbidden, restricted and expensive IFCID usage
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Sysview for Db2 forbidden, restricted and expensive IFCID usage

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Article ID: 122447

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Updated On:

Products

SYSVIEW Performance Management Option for DB2 for z/OS

Issue/Introduction

Sysview Performance Management Option for Db2 for z/OS (IDB2) Data Collector contains expensive IFCID(s) in online statistics history file: 0055, 0144, 0350

Explanation: The Data Collector SYSPARM option HIST-STATS-RECS contains one or more expensive IFCIDs as identified in the message text.
These IFCIDs will not be used by Sysview for Db2, can cause high Db2 overhead, and will potentially flood the Sysview for Db2 online history
file causing meaningful history data to be unavailable.

What is the meaning of "These IFCIDs will not be used by Sysview for Db2"?
Does it mean that if these IFCIDs are turned on, IDB2 will not use them?

Resolution

These IFCIDs will not be used by Sysview for Db2, can cause high DB2 overhead, and will potentially flood the Sysview for Db2 online history
file causing meaningful history data to be unavailable indicates that there are no screens in System History or Thread History that would ever
need to retrieve those records.