Remove DUMP=JES and DUMP=MVS from the OPTIONS initialization statement

Description

For enhanced problem determination and availability in z/OS V2R1, JES3 has dropped support for the DUMP=JES and DUMP=MVS parameter specifications on the OPTIONS initialization statement. In z/OS V2R1, DUMP=PRDMP is the default value and the only supported DUMP parameter specification.

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 V2R1.
Is the migration action required? No, but recommended to avoid warning messages. Any references to unsupported values are ignored, DUMP=PRDMP is used, a message is issued and initialization continues.
For example, if DUMP=JES or DUMP=MVS is specified, the system issues one of the following messages, and JES3 initialization continues:
IAT3255 WARNING: JES IS INVALID FOR 
KEYWORD DUMP, DEFAULT PRDUMP IS BEING
USED

IAT3255 WARNING: MVS IS INVALID FOR 
KEYWORD DUMP, DEFAULT PRDUMP IS BEING
USED
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. Check the OPTIONS statement in the JES3 initialization deck for DUMP=JES and DUMP=MVS specifications.
  2. Remove the DUMP=JES and DUMP=MVS specifications from the OPTIONS statement, or change the values to DUMP=PRDMP.

Reference information

For more information, see the following references:
Parent topic: JES3 actions to perform before the first IPL of z/OS V2R2