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'Error applying DVD Drive changes' and 'Error applying Hard Drive changes' when Hyper-V tries to mount iso file

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19
Visibility:
Public
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0
Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Hyper-V
  • CIFS/SMB

Issue

  • Hyper-V virtual machine (VM) fails to mount a .iso file that is accessible via ONTAP CIFS/SMB
    • Error applying DVD Drive changes
    • Error applying Hard Drive changes
  • Windows File Explorer is able to browse the contents of the .iso file
  • Packet trace shows that
    • Client requests ONTAP perform IOCTL function FSCTL_CREATE_OR_GET_OBJECT_ID (0x000900c0)
      • ONTAP replies with NT Status: STATUS_INVALID_DEVICE_REQUEST (0xc0000010)
    • Client sends Create/Open (cmd 5) request to open the .iso file
      • Client immediately sends Close (cmd 6) request to close the file, with zero Read (cmd 8) requests in between
      • Create requests used Access Mask 0x00100080 — only READ_ATTRIBUTES is set; FILE_READ_DATA is explicitly not set

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