How to increase Disk queue length for win2k8 and Win7

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  Hi,

   

  Disk queue length is a measurement of the disk performance, which can't be changed with a reg edit.  You'd have to do something to improve the disk subsystem performance.

   

  Reference post:

  https://social.technet.microsoft.com/Forums/lync/en-US/6a4d9d6a-eec0-4003-9214-aa7b6769fa33/how-to-configure-disk-queue-length?forum=winserverfiles

   

  Best Regards,

  Jenny

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  • Proposed as answer by Jenny YanMicrosoft contingent staff Thursday, September 12, 2019 5:27 AM

  Wednesday, September 11, 2019 1:43 AM
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  Hi,

   

  Is there any update for your issue? Please feel free to revert back if more assistance needed.

   

  Thanks,

  Jenny

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  Thursday, September 12, 2019 5:28 AM
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  Hi,

  Thanks for your valuable time.

  Can you suggest me what are possibility ways can increase disk queue length? I am still struggling to get it. Is there any tool or script.. something whatever.. Please assist me if possible.

  
  

  
  

  Thursday, September 12, 2019 1:26 PM
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  Hi,

   

  Quoted from above link:

  Improve the disk subsystem perfomance---->install faster drives, a faster RAID type, faster controller.

   

  However per my research, Current Disk Queue Length (in some earlier versions of Performance Monitor, this counter was named Disk Queue Length),  is the number of requests outstanding on the disk at the time the performance data is collected.  In other words, how many requests have stacked up waiting for the disk drive to be able to service them. If the value is larger, it indicates a potential disk bottleneck and further investigation and monitoring other disk metrics is recommended.

   

  Reference link:

  https://www.sqlshack.com/sql-server-disk-performance-metrics-part-2-important-disk-performance-measures/

   

  But if you are referring to improve the performance of disk, please check link in first reply.

   

  Note: Since the websites are not hosted by Microsoft, the links may change without notice. Microsoft does not guarantee the accuracy of this information.

   

  Best Regards,

  Jenny

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  • Edited by Jenny YanMicrosoft contingent staff Monday, September 16, 2019 7:05 AM

  Friday, September 13, 2019 7:33 AM
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  Thanks Jenny for your valuable inputs.

  I got a tool "DiskSpd" which help me to increase disk queue length.

  Download Link:

  https://gallery.technet.microsoft.com/DiskSpd-A-Robust-Storage-6ef84e62

  How to use the tool:

  https://blog.sqlterritory.com/2018/03/27/how-to-use-diskspd-to-check-io-subsystem-performance/
  

  -Jagzz

  • Marked as answer by Jagzzz Tuesday, September 17, 2019 10:31 AM

  Tuesday, September 17, 2019 10:30 AM
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  Hi Jagzz,

   

  Thanks for your update and sharing of the resolution. Please feel free to post in forum if more assistance needed.

   

  Thanks,

  Jenny

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  Thursday, September 19, 2019 1:22 AM