Windows 2019, Optimization not available for Thin provisioned driver.

BillyChiuSH 1 Reputation point

Hi All,

  I am using the Windows Server 2019 (version 1809). When I try to optimize my disk with defragment tool, I found it display "Optimization not available" for the disk type is Thin Provisioned.  And Optimize button is gray out too.  

  I just want to double confirm if Microsoft think it is not able to do optimization for thin provisioned drive or any other reason to disable it.  

  But when I use the command line "defrag e: /U /V", it will do analyzation and retrim it.  



Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
3,494 questions
0 comments No comments
{count} votes

2 answers

Sort by: Most helpful
  1. Carl Fan 6,836 Reputation points

    Hi Billy,
    Some people met the same issue before, some steps below:
    Try to stop the optimize drives service and then deleting all the Volume{GUID} keys in:

    Hope this helps and please help to accept as Answer if the response is useful.
    Best Regards,

  2. BillyChiuSH 1 Reputation point

    Hi All,

    I used the wireshark to capture the iSCSI package about the "analyze" button, Windows only send a INQUIRY command with page code 0xB0 (Block Limits Page).
    Then the tool judge the optimization not available. Do you know if there is any key value will make this result?


    0 comments No comments