IBM Support

Performance Degredation After Installing TR12 (V7R4) or TR7 (V7R5)

Flashes (Alerts)


Abstract

A limited number of clients have reported degraded performance after apply the latest TR.

Content

This Flash Alert applies to IBM i clients running SQL workloads in a pool whose paging option is set to *CALC. 

After applying the TR, an increase in I/O Pending Faults may occur leading to degraded performance.

Fix Information: 

DT456038

7.4 MJ08108 (IPL Required)

7.5 MJ08141 (IPL Required)

For more details, including potential mitigation options, refer to this document: https://www.ibm.com/support/pages/node/7252010 

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Document Information

Modified date:
19 November 2025

UID

ibm17252015