Model 204 system requirements: Difference between revisions

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==Model 204 Release V7.5==
==Operating system support==
===Model 204 Release V7.5===
Release V7.5 is supported on the following operating system environments:
Release V7.5 is supported on the following operating system environments:
<ul>
<ul>
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</ul>
</ul>


==Model 204 Release V7R4==
===Model 204 Release V7R4===
Release V7.4 is supported on the following operating system environments:
Release V7.4 is supported on the following operating system environments:
<ul>
<ul>
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</ul>
</ul>


==Model 204 Release V7R1==
===Model 204 Release V7R1===
Release V7.1 is supported on the following operating system environments:
Release V7.1 is supported on the following operating system environments:
<ul>
<ul>
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<li>IBM z/VM versions 5.3 and 5.4</li>
<li>IBM z/VM versions 5.3 and 5.4</li>
</ul>
</ul>
IBM z/VSE is not supported.


==z/OS 2.1 compatibility issues==
===z/OS 2.1 compatibility issues===
In Model 204 versions 7.5 and lower, Horizon TCP  applications sending data larger than 16K might get the following error:   
In Model 204 versions 7.5 and lower, Horizon TCP  applications sending data larger than 16K might get the following error:   
<p class="code">M204.1254: User language statement is invalid in this conversation state</p>                           
<p class="code">M204.1254: User language statement is invalid in this conversation state</p>                           
This error occurs under z/OS version 2.1 because the TCP Default Send Buffer Size (DefaultSndBufSize) was increased  to 65536 (from 16384 in earlier versions).
This error occurs under z/OS version 2.1 because the TCP Default Send Buffer Size (DefaultSndBufSize) was increased  to 65536 (from 16384 in earlier versions).


===Solution===
====Solution====
<ul>
<ul>


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<li><b>Model 204 v7.1 (and lower):</b> <br />Workaround: Set z/OS 2.1 TCP DefaultSndBufSize to 16384.</li>
<li><b>Model 204 v7.1 (and lower):</b> <br />Workaround: Set z/OS 2.1 TCP DefaultSndBufSize to 16384.</li>
</ul>
</ul>
==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:
<ul>
<li>The large (1 MB) page support feature requires the IBM z10 or above processor.</li>
</ul>
===Model 204 Release V7.4===
Model 204 version 7.4 requires the IBM z/890 or above processor, except for the following feature:
<ul>
<li>The large (1 MB) page support feature requires the IBM z10 or above processor.</li>
</ul>
===Model 204 Release V7.1===
Model 204 version 7.4 requires the IBM z/890 or above processor.

Revision as of 20:16, 22 January 2015

Operating system support

Model 204 Release V7.5

Release V7.5 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 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

IBM z/VSE is not supported.

z/OS 2.1 compatibility issues

In Model 204 versions 7.5 and lower, Horizon TCP applications sending data larger than 16K might get the following error:

M204.1254: User language statement is invalid in this conversation state

This error occurs under z/OS version 2.1 because the TCP Default Send Buffer Size (DefaultSndBufSize) was increased to 65536 (from 16384 in earlier versions).

Solution

  • Model 204 v7.5:
    Apply zap 75Z226.
  • Model 204 v7.4:
    Currently fixed by zap 74Z4552. Contact Model 204 support.
  • Model 204 v7.1 (and lower):
    Workaround: Set z/OS 2.1 TCP DefaultSndBufSize to 16384.

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.