Agents Administration - Tests
 

Default Parameters for DiskActivityTest

The DiskActivityTest reports statistics pertaining to the input/output utilization of each of the disk partitions of a system. This page depicts the default parameters that need to be configured for the DiskActivityTest.

  • The TEST PERIOD list box helps the user to decide how often this test needs to be executed. 

  • Setting the USEEXE flag to true, ensures that the disk activity metrics are collected by executing a binary instead of dynamically linking to the Performance instrumentation library. By default, this is set to false.

  • To obtain disk activity metrics for both logical and physical disks, enter all in the DISKS text box. To collect metrics for physical disks, set the DISKS parameter to Physical and to collect metrics for logical disks, set the parameter to Logical.

  • By default, the TRACE flag is set to No, indicating that the test does not generate in-depth details such as details on files that are read from/written to the disk, by default, so as to conserve storage space. However, if you want the test to generate and store details for each and every file that is read from/written to the disk, set the TRACE flag to Yes.

  • The DISK BUSY PERCENT parameter is applicable only when the TRACE flag to Yes. Specify the percentage of time beyond which the test should reveal the detailed diagnosis for the Disk Busy measure. By default, this parameter is set to 20. However, you can override this value as per your requirement.

  • The READ SIZE IN KB parameter is applicable only when the TRACE flag to Yes. By default, the value of this parameter is set to 10 KB indicating that this test will additionally report the detailed measures for the files that are read from the disk only when the size of files is minimum of 10 KB. This setting helps you to conserve space on the database. However, you can override the default value of this parameter as per your requirement.

    By default, the value of this parameter is set to 10 KB indicating that this test will report the additional details on the files in the detailed diagnosis only when the files with minimum size of 10 KB is read from the disk. This setting will help you conserve the storage space on the database. However, you can override the default value as per your requirement.

  • The WRITE SIZE IN KB parameter is applicable only when the TRACE flag to Yes. By default, the value of this parameter is set to 10 KB indicating that this test will report the detailed measures only when the files with minimum size of 1 KB is written on the disk. This setting will help you conserve the storage space on the database. However, you can override the default value as per your requirement.

  • The DISK RESPONSE TIME SECS parameter is applicable only when the the TRACE flag to Yes. By default, the value of this parameter is set to 1 second. This implies that the test will report the detailed measures only when the files with minimum size of 10 KB is read from/written to the disk within the time specified against this parameter. This setting will help you conserve the storage space on the database. However, you can override the default value as per your requirement.

  • The EVENT CAPTURE INTERVAL IN SECS parameter is applicable only when the the TRACE flag to Yes. By default, the value of this parameter is set to 10 seconds. This implies that the test will monitor the files involved in the disk operations performed within the time specified against this parameter. However, you can override this value as per your requirement.

  • Once the above values are provided, click on the UPDATE button to register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.