Microsoft KB Archive/216950

= How to Enable ODBC Connection Pooling Performance Counters =

Article ID: 216950

Article Last Modified on 11/21/2006

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APPLIES TO


 * Microsoft Internet Information Server 2.0
 * Microsoft Internet Information Server 3.0
 * Microsoft Internet Information Server 4.0
 * Microsoft Internet Information Services 5.0

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This article was previously published under Q216950



We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx



SUMMARY
ODBC Connection Pooling enhances the performance of database connections in Active Server Pages (ASP) applications. By default, the performance counters for Connection Pooling are disabled. This article describes the counters and how to enable them.



MORE INFORMATION
To enable the performance counters, follow these steps:


 * 1) Open Control Panel.
 * 2) Double-click the ODBC icon.
 * 3) Click the Connection Pooling tab.
 * 4) In the PerfMon section, select Enable.
 * 5) Click OK.

In Performance Monitor, the following counters will now be listed under the ODBC Connection Pooling object:
 * Connections Currently Active: The current number of connections being used by applications.
 * Connections Currently Free: The current number of connections available for connection requests.
 * Connections Sec/Hard: The number of connections made to data sources per second.
 * Connections Sec/Soft: The number of connections from the pool per second.
 * Disconnections Sec/Hard: The number of disconnects made to data sources per second.
 * Disconnections Sec/Soft: The number of disconnects from the pool per second.

For more information on Active Server Pages and ODBC connection pooling, see the following articles in the Microsoft Knowledge Base:

ARTICLE-ID: 169470

TITLE: INF: Frequently Asked Questions About ODBC Connection Pooling

ARTICLE-ID: 189410

TITLE: HOWTO: Enable or Disable Connection Pooling in IIS 4.0

ARTICLE-ID: 164221

TITLE: INF: How to Enable Connection Pooling in an ODBC Application

ARTICLE-ID: 166083

TITLE: INF: How to Enable Connection Pooling in an OLE DB Application

ARTICLE-ID: 176056

TITLE: INFO: ADO/ASP Scalability FAQ

Keywords: kbhowto KB216950

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