Icsf Migration Considerations; Gdps Virtual Appliance; Z/Os Migration Considerations - IBM z13s Technical Manual

7.4.5 ICSF migration considerations

Consider the following if you have installed the Cryptographic Support for z/OS V1R13 – z/OS
V2R1 web deliverable (FMID HCR77A1) to accommodate the change in the way master keys
are processed to determine which coprocessors become active:
The FMID HCR77A1 ICSF level is not integrated in z/OS V2R1 and needs to be
downloaded and installed even after ordering a z/OS V2R1 ServerPac. The Cryptographic
web deliverable is available at the following website:
http://www.ibm.com/systems/z/os/zos/downloads/
Starting with FMID HCR77A1, the activation procedure now uses the master key
verification patterns (MKVP) in the header record of the Cryptographic Key Data Set
(CKDS) and PKDS to determine which coprocessors become active.
You can use the IBM Health Checker check ICSFMIG77A1_UNSUPPORTED_HW to
determine whether your current server can support HCR77A1. The migration check is
available for HCR7770, HCR7780. HCR7790, and HCR77A0 through APAR OA42011.
All systems in a sysplex that share a PKDS/TKDS must be at HCR77A1 to use the
PKDS/TKDS Coordinated Administration support.
For more information, see Migration from z/OS V1R13 and z/OS V1R12 to z/OS V2R1,
GA32-0889.

7.5 GDPS Virtual Appliance

The GDPS Virtual Appliance solution implements GDPS/PPRC Multiplatform Resilience for
z Systems, also known as xDR. xDR coordinates near-continuous availability and a DR
solution by using the following features:
Disk error detection
Heartbeat for smoke tests
Re-IPL in place
Coordinated site takeover
Coordinated HyperSwap
Single point of control
The GDPS Virtual Appliance software requirements are z/VM Version 5 Release 4 or later, or
z/VM 6.2 or later. z/VM 5.4 is not supported on z13s.
For more information, see Appendix I, "GDPS Virtual Appliance" on page 541.

7.6 z/OS migration considerations

Except for base processor support, z/OS software changes do not require any of the
functions that are introduced with the z13s. Also, the functions do not require functional
software. The approach, where applicable, allows z/OS to automatically enable a function
based on the presence or absence of the required hardware and software.
Chapter 7. Software support
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