Software requirements for running z/OS V2R5
Careful planning is needed to ensure that you run the appropriate software with z/OS V2R5 on your target system. This topic lists software requirements to consider.
- This topic does not describe program requirements that are related to systems in a sysplex that use the coupling facility. For more information, see Parallel Sysplex.
- Requirements that are listed in this topic reflect the minimum levels.
- Some IBM products and z/OS elements and features have comparable non-IBM equivalents. This topic reflects only IBM software.
- z/OS does not support service for client systems for which service has been withdrawn by the operating system manufacturer.
Java dependencies for z/OS elements and components
z/OS V2R5 has an overall dependency on IBM 64-bit SDK for z/OS, Java™ Technology Edition, V8 (5655-DGH), and IBM 31-bit SDK for z/OS, Java Technology Edition, V8 (5655-DGG). Generally, this dependency exists for new or enhanced functions in z/OS. For the specific Java dependencies for each element, see Table 2.
As indicated in IBM United States Software Announcement 220-008, dated April 7, 2020, IBM intends to deliver an IBM SDK for z/OS, Java Technology Edition version 11. The SDK is planned to support the complete Java 11 language specification, enabling Java 11 compliant applications to be ported to z/OS. The SDK is planned to include the JZOS library for Java batch deployments and exploitation of z/OS system services (launcher and toolkit). Other z/OS specific extensions, such as integration with z/OS access control of cryptographic services and resources (keys/certificates), and support for Z hardware security modules, are planned to be introduced over time through service refreshes.
For the specific Java dependencies for each z/OS element, see Table 2. The z/OS dependencies in the table must be followed for proper functioning of z/OS.
- Base Control Program (BCP):
- Predictive Failure Analysis (PFA)
- System Management Facilities (SMF)
- Subcapacity Reporting Tool (SCRT)
- Workload Management (WLM)
- XML System Services
- Capacity Provisioning Manager (CPM)
- Common Information Model (CIM)
- DFSMS:
- DFSMShsm
- HCD
- HCM
- IBM Knowledge Center for z/OS
- IBM Tivoli® Directory Server (TDS)
- IBM z/OS Liberty Embedded
- IBM z/OS Management Facility (z/OSMF)
- Infoprint Server
- PKI services
- SDSF
- Security Server RACF®
- SMP/E
Determine which PTFs are needed for z/OS V2R5
Determine which PTFs are required for minimum support on z/OS V2R5, and which PTFs are required to use specific functions in z/OS V2R5.
- Identify the PTFs for both minimum support and functional support with a FIXCAT called
IBM.TargetSystem-RequiredService.z/OS.V2R5
, in enhanced HOLDDATA. The HOLDDATA type FIXCAT (fix category) is used to associate an APAR to a particular category of fix for target system PTFs identified as levels. - To identify the PTFs on your current system that would be needed for your upgrade to z/OS V2R5, run the SMP/E
command REPORT MISSINGFIX. You might, for example, use a command such as the following to identify PTFs for the CICS® CSI:
SET BDY(GLOBAL). REPORT MISSINGFIX ZONES(CICS51T) FIXCAT(IBM.TargetSystem-RequiredService.z/OS.V2R5).
- To determine what PTFs are needed and not yet installed, run the command REPORT MISSINGFIX against the global zones that you use to support your middleware and application products.
Determine the minimum product or functional release levels for z/OS V2R5
IBM middleware and application products require a specific release to run on z/OS V2R5. You cannot use the FIXCAT support to determine these release levels. Instead, you can refer to the tables in this section.
Table 1 lists the IBM middleware and application products that require a specific version of the product to run on z/OS V2R5.
If you use this IBM product... | You need this product level (usually achieved with PTFs) |
---|---|
IBM Application Performance Analyzer for z/OS (5655-Q49) | IBM Application Performance Analyzer for z/OS requires Version 14.1 at a minimum. Earlier levels of this product are not supported for use with z/OS V2R5. |
IBM
Tivoli
zSecure Suite:
|
IBM Security zSecure products require zSecure Suite 2.5 at a minimum. Earlier levels of this product are not supported for use with z/OS V2R5. |
IBM Tivoli Event Pump for z/OS (5698-B34) |
IBM
Tivoli Event Pump for z/OS, Version 4.2.2 requires PTF UA92963 for APAR OA51799. Prior releases (V4R2.0 and V4R2.1) of IBM Tivoli Event Pump for z/OS do not have a corresponding fix and therefore do not run on z/OS V2R5. |
Table 2 lists the functions of z/OS V2R5 that require specific optional features, IBM middleware products, or IBM application products.
z/OS element or feature | Required z/OS optional features or IBM products (by function) |
---|---|
Alternate Library for REXX | None. |
Base Control Program (BCP) | For requirements related to software support for the
IBM z16™, IBM z15™™, IBM z14®, z14 ZR1,
z13®, and z13s®™ servers, see the z/OS Upgrade Workflow. Db2® Data Server Driver for JDBC and SQLJ supports Java Batch Container function with PTF UK69734 and UK69742 (FMID JDB9912) Dynamic APF requirements:
|
BCP (continued) |
FICON® requirements:
IEAVFTED REXX exec requirements:
Java requirements:
Job support for started tasks requirements:
Messages that are displayed in non-English languages:
|
BCP (continued) |
Operations log (OPERLOG) requirements:
System-managed duplexing rebuild requires any APARs included in the CFDUPLEXING PSP bucket. This
function can be used by the following products and components:
TSO/E consoles used as extended MCS consoles:
z/OS
UNIX kernel requirements:
|
BDT | One or both of the BDT features (BDT File-to-File or BDT SNA NJE). |
BDT File-to-File | None. |
BDT SNA NJE | Any supported JES3 level. |
Common Information Model (CIM) |
Common Information Model (CIM) requires the following minimum level of Java:
|
Communications Server | IP Services has the following software requirements:
SNA Services has the following software requirements:
|
Communications Server Security Level 3 | None. |
Cryptographic Services | None. |
DFSMSdfp |
|
DFSMSdss |
IMS backup-while-open support: To use this function, the Database Manager feature of IMS V12 (5635-A03) or later is required. |
DFSMShsm |
To use control data set (CDS) record level sharing (RLS), you require global resource serialization or an equivalent function. The DFSMShsm component requires the following minimum level of Java:
|
DFSMSrmm |
None. |
DFSMStvs |
To apply forward recovery logs to a restored copy of a data set, you need CICS VSAM Recovery for z/OS V4 (5655-P30). To back up data sets while they are open, you need the z/OS features DFSMShsm and DFSMSdss. |
DFSORT | DFSORT Performance Booster for The SAS System requires enabling support from SAS Institute Inc. |
EREP | None. |
FFST | None. |
GDDM | None. |
GDDM-PGF | None. |
GDDM-REXX | None. |
HCD |
Use of the CHPID Mapping Tool is recommended for mapping logical CHPIDs to physical channels (PCHIDs) and creating input to HCD/IOCP. The tool is a workstation-based Java application available from the Resource Link home page. It updates the IOCP input file with the PCHID values and can generate reports to help with cabling. HCD requires the following minimum level of Java:
Note: Beginning with z/OS V2R1 (HCD
version 2), you can verify the active or target configuration by using z/OS discovery and I/O Autoconfiguration (zDAC). This action is possible for a
server that supports zDAC, and for a system in the local sysplex that is enabled for dynamic
activations. The verification is limited to FICON attached
storage devices.
|
HCM | Operating system (workstation): A supported level of Windows
Host communication:
HCM requires the following minimum level of Java:
|
HLASM | None. |
HLASM Toolkit | None. |
IBM HTTP Server | A web browser must be installed on a networked workstation. Communications Server IP connectivity must be established. |
IBM Knowledge Center for z/OS |
|
IBM Tivoli Directory Server |
If IBM TDS uses Db2 to store data for a general LDAP directory server, a supported Db2 level is required. Db2 is not required in the following situations:
If IBM Tivoli Directory Server uses a file-based backend (LDBM, file-based GDBM, or CDBM), a z/OS UNIX file system is required for storing this data. IBM Tivoli Directory Server requires a z/OS UNIX System file system for storing the schema backend. To write application programs that use the Kerberos or GSS-API programming interface, you require the z/OS XL C/C++ feature. IBM TDS requires the following minimum level of Java:
To use the ldapdiff utility, you require the following
minimum level of Java:
|
IBM z/OS Liberty Embedded | IBM z/OS Liberty Embedded requires the following minimum level of Java:
|
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IBM z/OS Management Facility (z/OSMF) | z/OSMF requires the following minimum level of Java:
By default, the SDK resides in the directory /usr/lpp/java/J8.0_64 on your system. If you installed it in another location, be sure to include the JAVA_HOME statement in your IZUPRMxx parmlib member, as described in IBM z/OS Management Facility Configuration Guide. To use the IBM z/OS Encryption Readiness Technology (zERT) Network Analyzer plug-in, you require Db2 11 for z/OS or later. |
IBM z/OS Workload Interaction Correlator | None. |
ICKDSF | None. |
Infoprint Server | The z/OS Security Server feature is required. To print output from Infoprint Server with AFP printers, you require PSF for z/OS V4 (5655-M32). If you want to
use the IPP server function of Infoprint Server, you require the following level of Java:
The IPP Server can use only the 31-bit SDK. To use the print management functions that are provided by Infoprint Central, you require:
Accessing
Infoprint Central requires one of the following web browsers on workstations with the following
tested operating systems:
Note: Other browsers might work with Infoprint Central, but are not tested. Using untested
browsers might result in some Infoprint Central functions that are disabled.
Infoprint
Server can use the following transform products to convert data streams from one format to
another:
Version
1 Release 2 of the following transform products can be used to convert
data streams from one format to another on z/OS
V2R1 and later releases:
|
Infoprint Server (continued) |
Version 1 Release 2 Mod 2 (V1R2M2) of the following transform product can be used to
convert data streams from one format to another on z/OS V2R1
and later releases:
The transforms can convert:
The workstation operating system that is required to use the Infoprint Port Monitor is Windows 8.1, Windows 10, Windows Server 2012, or Windows Server 2016. |
Integrated Security Services | None. |
ISPF | To use ISPF Software Configuration and Library Manager (SCLM), the z/OS Security Server feature is recommended, but not required, to ensure data
integrity. Use of VSAM support (Edit/View/Browse) requires the File Manager for z/OS product. |
JES2 | To monitor and control jobs, output, devices, and system resources from TSO/E, you require
the z/OS SDSF feature. To use Advanced Function Presentation, you need PSF for z/OS V4 (5655-M32). |
JES3 | To monitor JES3 activity, z/OS
RMF is required. To use Advanced Function Presentation, you need PSF for z/OS V4 (5655-M32). |
Language Environment |
With the following PTFs, the system auto-installs the Language Environment related resource definitions:
With CICS TS 5.4 and later, the autoinstall feature is included in the base code. |
Metal C Runtime Library |
None. |
MICR/OCR | None. |
NFS | NFS Client and NFS Server both require:
|
PKI Services |
PKI Services requires the following minimum level of Java:
|
RMF | The RMF Spreadsheet Reporter requires:
RMF Performance Monitoring (RMF PM) requires:
|
Restricted Use Common Service Area (RUCSA) |
None. |
Runtime Library Extensions | None. |
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![]() SDSF requires the following minimum level of Java:
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Security Server | To run the RACF remove ID utility (IRRRID00) or the
RACF report writer, you require the z/OS
DFSORT feature. If you use Db2 to manage multilevel data, you require a supported Db2 level. Security Server requires the following minimum level of Java:
|
SMP/E | SMP/E V3.7 requires one of the following Java levels or later:
The RECEIVE FROMNETWORK command and the GIMZIP and GIMGTPKG service routines require either the ICSF component of base element Cryptographic Services to be operational, or the level of Java mentioned here. |
Terminal Input Output Controller (TIOC) | None. |
TSO/E | For language support service or for TSO/E to save the user's console command profile, the z/OS Security Server feature is required. |
XL C/C++ | None. |
XML Toolkit | None. |
z/OS Authorized Code Scanner | None. |
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If you have a z14 or higher processor, you can enable the zCX trial and experiment with zCX for 90 days. After that, IBM Container Hosting Foundation for z/OS is the recommended enablement solution for zCX Docker. ![]() |
z/OS File System (zFS) | In z/OS V2R4, z/OS File System (zFS) replaced Distributed File Service, which became obsolete. The IP Services component of the z/OS Communications Server base element must be operational. |
z/OS Font Collection | None. |
z/OS OpenSSH |
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z/OS Security Level 3 | None. |
z/OS UNIX | To write application programs that use the C or C++ language application programming interface, you require the z/OS XL C/C++ feature. |
3270 PC File Transfer Program | Compatible 3270 emulation software, such as IBM Personal Communications/3270 and IBM Communications Manager/2, is required. |