Model 204 system requirements
Operating system support
Model 204 Release V7.5
Release V7.5 is supported on the IBM z/OS, IBM z/VM, and IBM z/VSE operating system environments.
IBM z/OS
The latest z/OS version supported is V2.1.
V1.7 or later is required.
V1.7 is sufficient for all new functionality except for the following features:
- Large (1 MB) page support requires V1.9.
- Extended address volumes (EAV) requires V1.12.
Authorization under APF is required to run Model 204 V750 under any z/OS operating system.
IBM z/VM
The latest z/VM version supported is V6.3.
z/VM V5.4 or later is required.
IBM z/VSE
The latest z/VSE version supported is V5.2.
z/VSE V5.1 or later is required.
Model 204 Release V7R4
Release V7.4 is supported on the following operating system environments:
- IBM z/OS versions 1.09 through 2.1
- IBM z/VM versions 5.3 and 5.4
- IBM z/VSE version 4.2.1
Model 204 Release V7R1
Release V7.1 is supported on the following operating system environments:
- IBM z/OS versions 1.09 through 2.1
- IBM z/VM versions 5.3 and 5.4
7.1 is not supported on IBM z/VSE.
Hardware requirements
Model 204 requires the IBM zSeries processors listed below for each Model 204 release.
Model 204 Release V7.5
Model 204 version 7.5 requires the IBM z/890 or above processor, except for the following feature:
- The large (1 MB) page support feature requires the IBM z10 or above processor.
Model 204 Release V7.4
Model 204 version 7.4 requires the IBM z/890 or above processor, except for the following feature:
- The large (1 MB) page support feature requires the IBM z10 or above processor.
Model 204 Release V7.1
Model 204 version 7.4 requires the IBM z/890 or above processor.