Red Alert : Unpredictable task failures and/or system outages with OMEGAMON XE on z/OS

Here's a new Red Alert:

Unpredictable task failures and/or system outages with OMEGAMON XE on z/OS

Description:

There is an exposure for storage overlays in common and private storage that can cause unpredictable task failures and/or system outages. All users of the OMEGAMON XE on z/OS product versions V420 or V510 with the following PTFs for OA39579 applied are affected:

• HKM5420 - UA66217
• HKM5510 - UA66218

The PTFs for OA39579 introduced the two problems described below. The PTFs for OA40262 resolved only the first problem. Fixes for OA40497 are also required to address the complete problem.

1. Random storage overlays due to an incorrect register used in an instruction. One symptom of this problem is many LOGREC entries for ABEND0C4 in module KXDWLCON. The overlay contains the character string 'AIO'.
2. An incomplete modification to an ENF exit causes ECSA storage overlays when a WLM policy switch is done.

Recommended Actions:
Apply the appropriate PTFs for OA40497 which will ensure both problems are resolved:

• HKM5420 - UA66779
• HKM5510 - UA66780

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