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Enabling Disk Performance Counters in Task Manager

09 / 03 / 2017 by Server, Windows Server 2012 R2 Yorum yok / No Comments

In Windows Server 2012 R2, disk performance counters were disabled by default because of significant performance impact in collecting Disk metrics on a Server.

This is due to the overhead Task Manager can cause when querying each Disk IO for each process/thread on the individual disk.

It is recommended to use Resource Monitor to gauge Disk  usage.

Enabling Disk Performance Counters

  1. Ensure Task Manager is closed.
  2. Launch the Command Prompt using the “Run as Administrator” option.
  3. Enter the following at the Command Prompt:

    diskperf -Y

  4. Hit Enter.
  5. Close the Command Prompt.
  6. Re-open the Task Manager.

If you need to disable disk performance counters , run diskperf -N


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