My Cloud 2Tb Safepoint

hi

I have a wd My Cloud 2TB with 700 GB of memory space. I would use the safepoint via usb but not know the specifics that must have the external hdd.
1 - How much memory is used for the safepoint?
2 - In what format hd must be formatted?
3 - How does the safepoint? Stores every single file on the external HD or create a compressed file smaller which can only be read by MyCloud or other?

Thank You

The files created by Safepoint are not compressed.  I like this feature because if MyCloud fails I don’t need a WD device or software to recover the files.  Just take the USB and plug it into something else.

Now getting the Safepoint to actually work…

Thank you very much for your answer NunyaBiznas