SQL Database Log Test

This test monitors the usage of the database logs on the Microsoft SQL server.

This test has been disabled by default. To enable this test, go to the enable / disable tests page using the menu sequence : Agents -> Tests -> Enable/Disable, pick Microsoft SQL as the Component type, Performance as the Test type, choose this test from the disabled tests list, and click on the << button to move the test to the ENABLED TESTS list. Finally, click the Update button.

Target of the test : A Microsoft SQL server

Agent deploying the test : An internal agent

Outputs of the test : One set of results for an Microsoft SQL server instance being monitored

Configurable parameters for the test
  1. TEST PERIOD - How often should the test be executed
  2. Host – The IP address of the Microsoft SQL server.
  3. Port - The port number through which the Microsoft SQL server communicates. The default port is 1433.
  4. ssl – If the Microsoft SQL server being monitored is an SSL-enabled server, then set the ssl flag to Yes. If not, then set the ssl flag to No.
  5. instance - In this text box, enter the name of a specific Microsoft SQL instance that is to be monitored. The default value of this parameter is “default”. To monitor an Microsoft SQL instance named “CFS”, enter this as the value of the INSTANCE parameter.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Microsoft SQL log file size:

Indicates the size of all the log files in the database during the last measurement period.


An unusually high value may indicate a sudden increase in the size of the log file of the SQL server.

Microsoft SQL log file usage:

Indicates the percentage of log file space that is in use.