Description: The following changes in hardware support could
affect your environment. Make appropriate changes as needed.
- Removal of support for running an operating system
in ESA/390 architecture mode. The z13™ is
the last system to support running in ESA/390 mode. All future systems
will only support operating systems running in z/Architecture® mode. However, all
24-bit and 31-bit problem-state application programs originally written
to run on the ESA/390 architecture will be unaffected by this change.
- Removal of support for Classic Style User Interface
on the Hardware Management Console and Support Element. The z13 will be the last System z® server to support Classic Style
User Interface. In the future, user interface enhancements will be
focused on the Tree Style User Interface.
- Removal of support for the Hardware Management Console
Common Infrastructure Model (CIM) Management Interface. z13 will be the last z Systems™ server to support the Hardware
Console Common Infrastructure module (CIM) Management Interface. The
Hardware Management Console Simple Network Management Protocol (SNMP),
and Web Services Application Programming Interfaces (APIs) will continue
to be supported.
- Removal of FICON® Express8
support. z13 will be the
last high-end server to support FICON Express8.
You should begin migrating from FICON Express8
channel features (#3325, #3326) to FICON Express16S
channel features (#0418, #0419). FICON Express8
will not be supported on future high-end z Systems servers as carry forward on an
upgrade.
- Removal of support for ordering FICON Express8S channel features . Enterprises
that have 2GB device connectivity requirements must carry forward
these channels.
- Removal of an option for the way shared logical processors
are managed under PR/SM™ LPAR. z13 will be the last high-end server
to support selection of the option "Do not end the timeslice if a
partition enters a wait state" when the option to set a processor
run-time value has been previously selected in the CPC RESET profile.
The CPC RESET profile applies to all shared logical partitions on
the machine, and is not selectable by logical partition.
- Removal of support for configuring OSN CHPID types .
OSN CHPIDs are used to communicate between an operating system instance
running in one logical partition and the Communications Controller
for Linux (CCL) product in
another logical partition on the same CPC. See announcement letter
#914-227 dated 12/02/2014 for details regarding withdrawal from marketing
for the CCL product.
Note: IBM's statements regarding its plans, directions, and intent
are subject to change or withdrawal without notice at IBM's sole discretion.
Information regarding potential future products is intended to outline
our general product direction and it should not be relied on in making
a purchasing decision. The information mentioned regarding potential
future products is not a commitment, promise, or legal obligation
to deliver any material, code, or functionality. Information about
potential future products may not be incorporated into any contract.
The development, release, and timing of any future features or functionality
described for our products remains at our sole discretion.
| Element or feature: |
Multiple. |
| When change was introduced: |
January 2015 in U.S., announcement of the z13. |
| Applies to migration from: |
z/OS® V2R1, z/OS V1R13 and z/OS V1R12. |
| Timing: |
Before migrating to a z13 server. |
| Is the migration action required? |
Yes. |
| Target system hardware requirements: |
See "Description" above. |
| 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: Take into account the statements in “Description”
above as you migrate to z13.