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.