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How to Enable ODBC Connection Pooling Performance Counters

Article ID: 216950 - View products that this article applies to.

This article was previously published under Q216950

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

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

For more information about IIS 7.0, visit the following Microsoft Web site:

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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:

Open Control Panel.
Double-click the ODBC icon.
Click the Connection Pooling tab.
In the PerfMon section, select Enable.
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

(http://support.microsoft.com/kb/169470/EN-US/ )

TITLE: INF: Frequently Asked Questions About ODBC Connection Pooling

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

ARTICLE-ID: 164221

(http://support.microsoft.com/kb/164221/EN-US/ )

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

ARTICLE-ID: 166083

(http://support.microsoft.com/kb/166083/EN-US/ )

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

ARTICLE-ID: 176056

(http://support.microsoft.com/kb/176056/EN-US/ )

TITLE: INFO: ADO/ASP Scalability FAQ