A very simple method to safe shutdown WD My Cloud PR4100 Firmware v 5.0.9.115, is
Step-1 - Enable SSH from GUI
Step-2 - Now login through SSH , and run shutdown.sh script from terminal

sshd is the default username for ssh access.
A very simple method to safe shutdown WD My Cloud PR4100 Firmware v 5.0.9.115, is
Step-1 - Enable SSH from GUI
Step-2 - Now login through SSH , and run shutdown.sh script from terminal

sshd is the default username for ssh access.
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