| Element or feature: |
Multiple. |
| When change was introduced: |
z/OS V2R1. |
| Applies to migration from: |
z/OS VR13 and z/OS V1R12. |
| Timing: |
Anytime |
| Is the migration action required? |
Yes, if you use any of the servers or controllers
that are no longer supported to run with z/OS V2R1. |
| Target system hardware requirements: |
None. |
| Target system software requirements: |
None. |
| Other system (coexistence or fallback) requirements: |
None. |
| Restrictions: |
None. |
| System impacts: |
- During IPL/NIP processing, if you try to use an unsupported control
unit for z/OS V2R1, you receive the following error condition for
devices under the control unit .
IEA434I (nnnn) ONLINE
IS NOT ALLOWED, INVALID
CONTROL UNIT MODEL
During VARY ONLINE command processing
after IPL/NIP, you receive the following error condition for devices
under the unsupported control unit:IEA434I DEVICE ONLINE
IS NOT ALLOWED, INVALID
CONTROL UNIT MODEL
- If you IPL z/OS V2R1 on a server that it does not support, you
might receive wait state 07B-1E (decimal 30).
Note: The number of IEA434I
messages is limited to 32 during IPL/NIP to avoid exhausting initial
ESQA. An IEA444I message will be reported one time during IPL/NIP
to indicate that additional IEA434I messages have been suppressed:
IEA444I NUMBER OF IEA434I
MESSAGES EXCEEDS NIP MAXIMUM
|
| Related IBM Health Checker for z/OS check: |
None. |