Diskperf Not Installed

Unless the Disk Statistics Driver (Diskperf) is already running on the monitored machine, the Windows parameter set will not be able to collect information regarding the monitored machine.

By default, Diskperf installs the Disk Performance Statistics Driver above the fault-tolerant driver, Ftdisk.sys, in the I/O Manager disk driver stack. To determine if Ftdisk is started in your configuration, use the Devices Control Panel.

Workaround

The following steps let you run Diskperf on the monitored Windows computer. But note that you should be a member of the Administrator's local group to be able to run Diskperf on that computer.

Open a Command Prompt window to run Diskperf on your Windows computer.
Execute any of the following commands:
- diskperf -y: Enables counters on a standard disk configuration.
- diskperf: Shows whether disk counters are enabled or not.
- diskperf -yv: Enables disk counters on mirror and stripe sets and other non-contiguous partition sets and installs the performance statistics driver below the fault-tolerant driver in the I/O stack.
- diskperf -n: Disables disk counters.

Important

In order to run Diskperf on a remote computer, execute the command name diskperf followed by the name of the remote computer. For example: diskperf//computername.

Run the diskperf -yy command in order to monitor the physical disks in the disk configurations that includes Ftdisk.
After running Diskperf on your system, restart the computer.

Diskperf Not Installed

Workaround

Important

See Also