LFTBL parameter: Difference between revisions

Latest revision as of 16:41, 20 July 2020

Length of FTBL

The size of FTBL in bytes

FTBL is used for file groups.

The minimum value of LFTBL is 4 * nGroup, where nGroup is the value of the NGROUP parameter.
The maximum value is 30,473,403
In addition to the reserved nGroup bytes in FTBL, each open group requires 62 + 2 * nFilesInGroup, where nFilesInGroup is the number of files in the group.
In addition to those storage requirements in FTBL, each group field referenced in a SOUL request requires additional space in FTBL.

Refer to UTABLE: Setting the server size for a discussion of changing the size of LFTBL.

@@ Line 11: / Line 11: @@
 <dd>All
 <dt>Introduced
-<dd><var class="product">Model 204 V6.1</var> or earlier
+<dd><var class="product">Model 204 V2.2</var> or earlier
 </dl>
 ==Description==
 <p>The size of FTBL in bytes</p>
-<p>FTBL is used for file groups. LFTBL can be set to zero if groups are not used and if NGROUP is also set to zero. LFTBL can range from 0 to 30,473,403.</p>
+<p>FTBL is used for file groups.
-<p>Refer to [[UTABLE command|"UTABLE: Setting the server size"]] for a discussion of changing the size of LFTBL. </p>
+<ul>
+<li>The minimum value of <var>LFTBL</var> is <code>4 * <i>nGroup</i></code>, where <i>nGroup</i> is the value of the <var>[[NGROUP_parameter|NGROUP]]</var> parameter.</li>
+<li>The maximum value is 30,473,403</li>
+<li>In addition to the reserved <i>nGroup</i> bytes in FTBL, each open group requires <code>62 + 2 * <i>nFilesInGroup</i></code>, where <i>nFilesInGroup</i> is the number of files in the group.</li>
+<li>In addition to those storage requirements in FTBL, each group field referenced in a SOUL request requires additional space in FTBL.
+</ul>
+</p>
+<p>
+Refer to [[UTABLE command|UTABLE: Setting the server size]] for a discussion of changing the size of LFTBL. </p>
 [[Category:Utable parameters]]
 [[Category:Parameters]]