Description: Before z/OS V1R12, the system console could not issue any commands (except REPLY and VARY CN(*),ACTIVATE) unless it was placed in problem determination (PD) mode through the VARY CN(*),ACTIVATE command. Starting with z/OS V1R12, processing changed so that commands could always be entered at the system console regardless of problem determination mode. With APAR OA34731, commands can only be entered at the system console if the CONSOLxx keyword ALLOWCMD(Y) is specified on the system console definition.
| Element or feature: | BCP. |
| When change was introduced: | z/OS V1R12 with APAR OA34731 and z/OS V1R13. |
| Applies to migration from: | z/OS V1R12 without the PTF for OA34731 installed. |
| Timing: | Before the first IPL of z/OS V2R1. |
| Is the migration action required? | Yes, if it applies to migration from z/OS V1R12 without the PTF for OA34731, and you want to override the default of ALLOWCMD(N) introduced in OA34731 (and integrated into higher releases) to allow the system console issue the commands regardless of problem determination mode. |
| Target system hardware requirements: | None. |
| Target system software requirements: | None. |
| Other system (coexistence or fallback) requirements: | The parmlib statement ALLOWCMD in CONSOLxx is not tolerated on systems that do not have the PTF for APAR OA34731 installed. |
| Restrictions: | None. |
| System impacts: | None. |
| Related IBM Health Checker for z/OS check: | Use CHECK(CNZ_SYSCONS_ALLOWCMD) to compare the ALLOWCMD setting for the system console with the setting specified on the check. |
Steps to take: Add ALLOWCMD(Y) to the system console definition in the CONSOLxx member of PARMLIB if you wish to allow commands to be issued from the system console regardless of problem determination mode.