Change JES3 release level format

Description

In z/OS V2R1 SSI 54, SSI 82, and SSI 83 report the JES3 release level using the JES2 format z/OS 2.1. In previous versions of z/OS, JES3 reported the release level using the format z 1.13.0. The SSI fields which are affected by the format change are:
  • SSI 54: SSVIVERS field from macro IEFSSVI
  • SSI 82: JPXVERSN field from macro IAZJPLEX
  • SSI 83: JPSYVERN field from macro IAZJPLXI.

Table 1 provides more details about this migration action. Use this information to plan your changes to the system.

Table 1. Information about this migration action
Element or feature: z/OS JES3.
When change was introduced: z/OS V2R1.
Applies to migration from: z/OS V1R13.
Timing: Before the first IPL of z/OS V2R2.
Is the migration action required? Yes, if code is dependent on the JES3 release level returned by SSI 54, SSI 82 or SSI 83.
Target system hardware requirements: None.
Target system software requirements: None.
Other system (coexistence or fallback) requirements: None.
Restrictions: None.
System impacts: None.
Related IBM Health Checker for z/OS check: None.

Steps to take

Follow these steps:
  1. Search for fields SSVIVERS, JPXVERSN and JPSYVERN in invocations of SSI 54, SSI 82 and SSI 83.
  2. For any code that requires the z/OS 2.1 JES3 release level, change the expected format to 'z/OS 2.1' (z/OS #.#).

Reference information

For more information, see z/OS MVS Using the Subsystem Interface.

Parent topic: JES3 actions to perform before the first IPL of z/OS V2R2