Windows Performance Monitor Counters

For StorNext File Systems installed on Microsoft Windows servers, Windows provides a way to display performance for individual components in use on that StorNext system.

Performance counters are not enabled by default in the client. To enable the performance counters, enter "cvdb -P" on the command line. "cvdb -P" also toggles the state of the counters between on and off. To clear all counters, disable the counters, and then re-enable the counters with "cvdb -P".

To view the performance monitor counters:

Note: The following instructions apply to versions of Windows supported by StorNext 5 (for example, Windows Vista and newer). Refer to earlier versions of the StorNext Tuning Guide when enabling Windows Performance Monitor Counters for older versions of Windows.

1.

Start the performance monitor.

a.

Click the Start icon.

b.

In the “Search programs and files” dialog, enter:

perfmon

2.

Click the "add counter" icon.

3.

Select either "StorNext Client" or "StorNext Disk Agent".

Note: The "StorNext Disk Agent" counters are internal debugging/diagnostic counters used by Quantum personnel and are not helpful in performance tuning of your system.

4.

Select an individual counter.

5.

To display additional information about the counter:

Check the "Show description" checkbox.