SERVNSSZ parameter: Difference between revisions

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{{Template:SERVNSSZ parameter subtitle}}
==Summary==
==Summary==
<dl>
<dl>
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<dd>0
<dd>0
<dt>Parameter type
<dt>Parameter type
<dd>User
<dd>System
<dt>Where set
<dt>Where set
<dd>On User 0's parameter line
<dd>On User 0's parameter line
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<dd><var class="product">Model 204 V7.4</var>
<dd><var class="product">Model 204 V7.4</var>
</dl>
</dl>
==Description==
==Description==
<p>The SERVNSSZ parameter, along with the SERVNSA parameter, controls non-swappable server areas when FTBL is stored above the bar.</p>
<p>
The <var>SERVNSSZ</var> parameter, along with the <var>SERVNSA</var> parameter, controls non-swappable above-the-bar (in memory with address greater than 2G) server areas.</p>
<ul>
<ul>
<li>
<li>
SERVNSSZ (server non-swappable size) is the amount of space in bytes required for the above-the-bar server tables per user. The total amount of storage allocated for non-swappable server areas equals SERVNSSZ rounded to 4 K and multiplied by NUSERS.
<var>SERVNSSZ</var> (server non-swappable size) is the amount of space in, bytes, required for the above-the-bar server tables per user. The total amount of storage allocated for non-swappable server areas equals <var>SERVNSSZ</var> rounded to 4K and multiplied by <var>[[NUSERS parameter|NUSERS]]</var>.
When sizing SERVNSSZ you should use the largest FTBL sizes that might be needed.</li>
When sizing <var>SERVNSSZ</var> you should use the largest sum of  non-swappable above-the-bar server table sizes that might be needed.</li>
<li>
 
SERVNSA (server non-swappable areas) indicates the tables that you want to be above the bar. At this time, only FTBL may be selected and its appropriate setting is x'02000000'.</li>
<li><var>[[SERVNSA parameter|SERVNSA]]</var> (server non-swappable areas) indicates the server tables that you want to be above the bar.</li>
</ul>
For reference purposes:
<ul>
<li>The <var>[[SERVGSZ parameter|SERVGSZ]]</var> parameter (server <b>swappable</b> size) controls the amount of space, in bytes, allocated to the swappable, above-the-bar server areas. </li>
 
<li>The <var>[[SERVGA parameter|SERVGA]]</var> parameter (server <b>swappable</b> areas) indicates the server tables you want to be in the swappable, above-the-bar server areas. </li>
</ul>
</ul>
<p>For more information about FTBL storage above the bar, see the <var>Rocket Model&nbsp;204 System Manager's Guide.</var></p>
 
[[Category:User Parameters]]
For more information, see [[Defining_the_runtime_environment_(CCAIN)#Designating_non-swappable_and_swappable_server_space|Designating non-swappable and swappable server space]]
 
[[Category:System parameters]]
[[Category:Parameters]]
[[Category:Parameters]]

Latest revision as of 21:39, 31 March 2017

NSA (non-swap-area) server size maximum

Summary

Default value
0
Parameter type
System
Where set
On User 0's parameter line
Related products
All
Introduced
Model 204 V7.4

Description

The SERVNSSZ parameter, along with the SERVNSA parameter, controls non-swappable above-the-bar (in memory with address greater than 2G) server areas.

  • SERVNSSZ (server non-swappable size) is the amount of space in, bytes, required for the above-the-bar server tables per user. The total amount of storage allocated for non-swappable server areas equals SERVNSSZ rounded to 4K and multiplied by NUSERS. When sizing SERVNSSZ you should use the largest sum of non-swappable above-the-bar server table sizes that might be needed.
  • SERVNSA (server non-swappable areas) indicates the server tables that you want to be above the bar.

For reference purposes:

  • The SERVGSZ parameter (server swappable size) controls the amount of space, in bytes, allocated to the swappable, above-the-bar server areas.
  • The SERVGA parameter (server swappable areas) indicates the server tables you want to be in the swappable, above-the-bar server areas.

For more information, see Designating non-swappable and swappable server space