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<h1 class="topictitle1">Performance data files: QAPMPOOLT</h1>
<div><p>This database file includes main storage pool file entries and
lists the tuning information for the storage pools.</p>
<div class="section"><p> </p>
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<!-- End of link to dynamic table --><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th valign="top" width="25%" id="d0e25">Field Name</th>
<th valign="top" width="50%" id="d0e27">Description</th>
<th valign="top" width="25%" id="d0e29">Attribute</th>
</tr>
</thead>
<tbody><tr><td valign="top" width="25%" headers="d0e25 ">INTNUM</td>
<td valign="top" width="50%" headers="d0e27 ">Interval number: The nth sample database interval based on the start
time specified in the <span class="cmdname">Create Performance Data (CRTPFRDTA)</span> command.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (5,0)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">DTETIM</td>
<td valign="top" width="50%" headers="d0e27 ">Interval date (yymmdd) and time (hhmmss): The date and time of the
sample interval.</td>
<td valign="top" width="25%" headers="d0e29 ">C (12)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">INTSEC</td>
<td valign="top" width="50%" headers="d0e27 ">Elapsed interval seconds: The number of seconds since the last sample
interval.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (7,0)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">DTECEN</td>
<td valign="top" width="50%" headers="d0e27 ">Century digit.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PONBR</td>
<td valign="top" width="50%" headers="d0e27 ">Pool number: Specifies the unique identifier of this pool. The value
is from 1 to 64.</td>
<td valign="top" width="25%" headers="d0e29 ">C (3)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTTYPE</td>
<td valign="top" width="50%" headers="d0e27 ">Type of tuning: The method used by the system to tune the storage pool: <ul><li>0 -- No tuning</li>
<li>1 -- Static tuning</li>
<li>2 -- Dynamic tuning of transfers into main storage</li>
<li>3 -- Dynamic tuning of transfers into main storage and to auxiliary storage.</li>
</ul>
</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTPAGE</td>
<td valign="top" width="50%" headers="d0e27 ">Change page handling. The method used by the system to determine when
to write changed pages to auxiliary storage: <ul><li>0 -- Use the system default</li>
<li>1 -- Periodically transfer changed pages to auxiliary storage.</li>
</ul>
</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTNDBF</td>
<td valign="top" width="50%" headers="d0e27 ">Non-database blocking factor. The amount of data (in KB) that should
be brought into main storage when a request is made to read non-database objects
from auxiliary storage.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (3,0)</td>
</tr>
<tr id="rzahxqapmpoolt__ptdbf1"><td valign="top" width="25%" headers="d0e25 ">PTDBF1</td>
<td valign="top" width="50%" headers="d0e27 ">Database blocking factor (class 1.) The amount of data (in KB) that
should be brought into main storage when a request is made to read database
objects from auxiliary storage.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (3,0)</td>
</tr>
<tr id="rzahxqapmpoolt__ptdex1"><td valign="top" width="25%" headers="d0e25 ">PTDEX1</td>
<td valign="top" width="50%" headers="d0e27 ">Database exchange operation type (class 1.) The exchange operation
used to reduce the working set size. <ul><li>0 -- Use the system default</li>
<li>1 -- Allow exchange operations</li>
<li>2 -- Disable exchange operations</li>
<li>3 -- Disable exchange operations.</li>
</ul>
<p>The data that already exists in main storage should be a good candidate
to be replaced when additional storage is needed in the storage pool.</p>
</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr id="rzahxqapmpoolt__ptdts1"><td valign="top" width="25%" headers="d0e25 ">PTDTS1</td>
<td valign="top" width="50%" headers="d0e27 ">Database type of transfer to auxiliary storage (class 1.) The method
the system uses to process a request to write an object to auxiliary storage. <ul><li>0 -- Use the system default</li>
<li>1 -- Purge object from main storage</li>
<li>2 -- Write object to auxiliary storage</li>
<li>3 -- Indicate object is a good candidate for replacement</li>
<li>4 -- Use the system page replacement algorithm.</li>
</ul>
</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDBF2</td>
<td valign="top" width="50%" headers="d0e27 ">Database blocking factor (class 2.) See <a href="#rzahxqapmpoolt__ptdbf1">PTDBF1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (3,0)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDEX2</td>
<td valign="top" width="50%" headers="d0e27 ">Database allow exchange operations (class 2.) See <a href="#rzahxqapmpoolt__ptdex1">PTDEX1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDTS2</td>
<td valign="top" width="50%" headers="d0e27 ">Database type of transfer to auxiliary storage (class 2.) See <a href="#rzahxqapmpoolt__ptdts1">PTDTS1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDBF3</td>
<td valign="top" width="50%" headers="d0e27 ">Database blocking factor (class 3.) See <a href="#rzahxqapmpoolt__ptdbf1">PTDBF1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (3,0)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDEX3</td>
<td valign="top" width="50%" headers="d0e27 ">Database allow exchange operations (class 3.) See <a href="#rzahxqapmpoolt__ptdex1">PTDEX1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDTS3</td>
<td valign="top" width="50%" headers="d0e27 ">Database type of transfer to auxiliary storage (class 3.) See <a href="#rzahxqapmpoolt__ptdts1">PTDTS1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDBF4</td>
<td valign="top" width="50%" headers="d0e27 ">Database blocking factor (class 4.) See <a href="#rzahxqapmpoolt__ptdbf1">PTDBF1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">PD (3,0)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDEX4</td>
<td valign="top" width="50%" headers="d0e27 ">Database allow exchange operations (class 4.) See <a href="#rzahxqapmpoolt__ptdex1">PTDEX1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
<tr><td valign="top" width="25%" headers="d0e25 ">PTDTS4</td>
<td valign="top" width="50%" headers="d0e27 ">Database type of transfer to auxiliary storage (class 4.) See <a href="#rzahxqapmpoolt__ptdts1">PTDTS1</a>.</td>
<td valign="top" width="25%" headers="d0e29 ">C (1)</td>
</tr>
</tbody>
</table>
</div>
<div class="note"><span class="notetitle">Note:</span> For more information on pool tuning, see <span class="q">"Setting Up the System
to Dynamically Adjust a Storage Pool for an Object (Expert Cache)"</span> in the <cite>V5R1
Work Management</cite> manual (SC41-5306-03) on the <a href="http://publib.boulder.ibm.com/iseries/v5r1/ic2924/rzaqhindex.htm" target="_blank">V5R1 Supplemental Manuals</a> <img src="www.gif" alt="Link outside information center" /> Web site. </div>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahxapsparent.htm" title="Managing performance on iSeries systems requires the use of a variety of specialized applications. Each of these applications offers a specific insight into system performance. This topic explains several applications and the intended use of each application.">Applications for performance management</a></div>
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