Microsoft Windows 10 – a file level backup *.VHD to the NAS device running samba failed

Windows10_logo   The failure happens while the *.VHD file created by Windows Backup is mounted during backup. The *.VHD file is created as a sparse file and this is not supported by the native VHD driver and hence mounting of the .*VHD failed. The „strict allocate = yes“ option of Samba will force it to not have UNIX style behavior of creating sparse file

# vi smb.conf
strict allocate = yes

and enabling SMB Large MTU on Windows Clients

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