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Flashsystem host unmap not working ¿?

  • 1.  Flashsystem host unmap not working ¿?

    Posted Fri October 22, 2021 03:30 PM
    Hi
    can somebody help me to understand the UNMAP function on the flashsystem.
    Or what i am doing wrong.
    I want to use UNMAP for my hosts ( generic hosts Windows & AIX), i got spectrum virtualize 8.4.0.5. Flashsystem 7200 with all flash FCM2 modules.
    I understand that UNMAP must be enable by default.
     lssystem command shows that host_unmap is not enable
    > lssystem
    ...
    host_unmap off
    ...
    So i enabled it:
    > chsystem -hostunmap on 
    now lssystem shows it enabled.

    For testing i type in a windows 2019 host:
    PS:> defrag D: /L
    but i got an error
    "the operation requested is not supported by the hardware backing the volume"
    same error with command.  PS:> Optimize-volume

    what am i doing wrong?

    thank you in advance for any help

    ------------------------------
    Arturo Garfias
    ------------------------------


  • 2.  RE: Flashsystem host unmap not working ¿?

    Posted Mon October 25, 2021 10:43 AM