Ensure that you are running on supported servers and storage controllers

Description

z/OS® V2R2 runs on the following IBM® System z® servers:
  • IBM z Systems™ z13™ (z13).
  • IBM zEnterprise® EC12 (zEC12).
  • IBM zEnterprise BC12 (zBC12).
  • IBM zEnterprise 196 (z196), which is withdrawn from marketing.
  • IBM zEnterprise 114 (z114), which is withdrawn from marketing.
  • IBM System z10® (z10™ EC, z10 BC), which is withdrawn from marketing.
In addition, z/OS V2R2 supports these and later IBM storage control units:
  • 3990 Model 3 and 3990 Model 6
  • 9393
  • 2105
  • 2107
  • 2421
  • 2422
  • 2423
  • 2424
The following IBM servers are no longer supported to run z/OS V2R2:
  • IBM System z9® (z9® BC, z9 EC)
  • IBM eServer™ zSeries 990 (z990)
  • IBM eServer zSeries 890 (z890)
  • IBM eServer zSeries 900 (z900)
  • IBM eServer zSeries 800 (z800)

Note that running z/OS V2R2 as a z/VM® guest has the same requirements as running natively in an LPAR.

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: Multiple.
When change was introduced: z/OS V2R2.
Applies to migration from: z/OS V2R1 and z/OS VR13.
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 V2R2.
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 V2R2, 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 V2R2 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.

Steps to take

Follow these steps:
  1. Determine whether the servers and control units that you use are supported for z/OS V2R2. If you have a question about support for any devices not listed, contact your IBM representative.
  2. Install replacement servers and control units. Detach unsupported servers and control units from the system and delete their corresponding definitions from the input/output definition file (IODF).

Reference information

For more information, see Release memorandum - RFA 58183 - 04/15/13 (IBM Guide 27.10).

Parent topic: Hardware migration actions