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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Replaying a Database Workload Using Enterprise Manager</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-06-04T10:50:31Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Replaying a Database Workload Using Enterprise Manager" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E12254-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="dbr_replay016.htm" title="Previous" type="text/html" /> <link rel="next" href="dbr_replay018.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="dbr_replay016.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="dbr_replay018.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CHDEBCIC" name="CHDEBCIC"></a><a id="RATUG147" name="RATUG147"></a></p> <div class="sect1"><!-- infolevel="all" infotype="General" --> <h1>Replaying a Database Workload Using Enterprise Manager</h1> <a name="BEGIN" id="BEGIN"></a> <p>This section describes how to replay a database workload using Enterprise Manager.</p> <a id="RATUG262" name="RATUG262"></a> <p class="subhead2">To replay a database workload using Enterprise Manager:</p> <ol> <li> <p>On the Software and Support page, under Real Application Testing, click <span class="bold">Database Replay</span>.</p> <p>The Database Replay page appears.</p> </li> <li> <p>In the Go to Task column, click the icon that corresponds to the Replay Workload task.</p> <p>The Replay Workload page appears.</p> </li> <li> <p>In the Directory Object list, select a directory that contains the preprocessed workload that you want to replay.</p> <p>After a directory is selected, the Replay Workload page will be refreshed to display the Capture Summary and the Replay History sections. For more information, see <a href="dbr_replay005.htm#CHDJBBFI">"Setting Up the Replay Directory"</a>.</p> <p>The Capture Summary section displays information about the preprocessed workload capture in the selected directory. To view additional details about the workload capture, expand <span class="bold">Capture Details</span>. The expanded Capture Details section displays the workload profile and workload filters used during the workload capture.</p> </li> <li> <p>Click <span class="bold">Set Up Replay</span>.</p> <p>The Replay Workload: Prerequisites page appears.</p> </li> <li> <p>Verify that all prerequisites are met before proceeding.</p> <p>For more information about the prerequisites, see <a href="dbr_replay004.htm#CHDHHDGE">"Steps for Replaying a Database Workload"</a>. If you are replaying the workload on a test system, ensure that the test system is properly prepared for replay. For more information, see <a href="dbr_replay001.htm#CHDEBJIF">"Setting Up the Test System"</a>.</p> <p>Once all prerequisites are completed, click <span class="bold">Continue</span>.</p> <p>The Replay Workload: References to External Systems page appears.</p> </li> <li> <p>Verify potential references to all external systems and modify any invalid references.</p> <p>Use the links available on the Replay Workload: References to External Systems page to verify the database links, directory objects, and Oracle Streams that may be referenced during the workload capture process. There may be other references to external systems that are not included in these categories. For more information, see <a href="dbr_replay006.htm#CHDBIBHI">"Resolving References to External Systems"</a>.</p> <p>Once all references to external systems have been verified and modified as necessary, click <span class="bold">Continue</span>.</p> <p>The Replay Workload: Choose Initial Options page appears.</p> </li> <li> <p>In the Replay Name field, you may enter a name for the replay, or simply use the name generated by the system.</p> </li> <li> <p>Under Initial Options, select whether to use default replay options or replay options from a previous replay (if one is available). If multiple replays exist, select the replay you want to use from the Replay Name list.</p> <p>Click <span class="bold">Next</span>.</p> <p>The Replay Workload: Customize Options page appears.</p> </li> <li> <p>Remap captured connection strings to connection strings that point to the replay system.</p> <p>Click the <span class="bold">Connection Mappings</span> tab. There are several methods you can use to remap captured connection strings. You can choose to:</p> <ul> <li> <p><span class="bold">Use a single connect descriptor for all client connections</span> by selecting this option and entering the connect descriptor you want to use. The connect descriptor should point to the replay system.</p> <p>To test the connection, click <span class="bold">Test Connection</span>. If the connect descriptor is valid, an Information message is displayed to inform you that the connection was successful.</p> </li> <li> <p><span class="bold">Use a single TNS net service name for all client connections</span> by selecting this option and entering the net service name you want to use. All replay clients must be able to resolve the net service name, which can be done using a local tnsnames.ora file.</p> </li> <li> <p><span class="bold">Use a separate connect descriptor or net service name for each client connect descriptor captured in the workload</span> by selecting this option and, for each capture system value, entering a corresponding replay system value that will be used by the replay client.</p> </li> </ul> <p>For more information, see <a href="dbr_replay007.htm#CHDHHDHI">"Remapping Connections"</a>.</p> </li> <li> <p>Specify the replay options using the replay parameters.</p> <p>To modify the replay behavior, click the <span class="bold">Replay Parameters</span> tab and enter the desired values for each replay parameter. Using the default values is recommended. For information about setting the replay parameters, see <a href="dbr_replay008.htm#CHDFAGEA">"Specifying Replay Options"</a>.</p> <p>After setting the replay parameters, click <span class="bold">Next</span>.</p> <p>The Replay Workload: Prepare Replay Clients page appears.</p> </li> <li> <p>Ensure that replay clients are prepared for replay.</p> <p>Before proceeding, the replay clients need to be prepared. For more information, see <a href="dbr_replay013.htm#CHDICJHE">"Setting Up Replay Clients"</a>.</p> <p>After all replay clients are ready to start, click <span class="bold">Next</span>.</p> <p>The Replay Workload: Wait for Client Connections page appears.</p> </li> <li> <p>Start the replay clients.</p> <p>For information about starting replay clients, see <a href="dbr_replay013.htm#CHDICJHE">"Setting Up Replay Clients"</a>.</p> <p>As replay clients are started, the replay client connections will be displayed under Client Connections. When all replay clients have connected, click <span class="bold">Next</span>.</p> <p>The Replay Workload: Review page appears.</p> </li> <li> <p>Review the options and parameters that have been defined for the workload replay.</p> <p>Before starting replay, reset the system clock to a value that is as close to the capture start time as possible. This minimizes any data divergence that may result from replaying a time-sensitive workload. For more information, see <a href="dbr_replay003.htm#CHDDIBFB">"Resetting the System Time"</a>.</p> <p>To begin replay, click <span class="bold">Submit</span>. If no replay clients are connected, this button will be disabled. To make changes, click <span class="bold">Back</span>. To cancel replay without saving changes, click <span class="bold">Cancel</span>.</p> <p>Once the replay is started, the View Workload Replay page appears. For information about monitoring an active workload replay, see <a href="dbr_replay019.htm#CHDBIJAA">"Monitoring an Active Workload Replay"</a>.</p> </li> </ol> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="dbr_replay.htm#CHDBCADJ">Replaying a Database Workload</a></p> </div> </div> <!-- class="sect1" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2008, 2009, Oracle and/or its affiliates. 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