Using My Passport Wireless as external back up on a NAS

I’d like to connect my passport wireless to my NAS and then schedule an automatic back up of some folders on the NAS to the passport.
However my NAS ‘cannot mount’ the passport although it does see it as a connected external drive.
The NAS does not know the format of the passport and it seems it would like me to format it.
However if I did that surely the passport will no longer be wireless ? and I will lose all my set up ?
any ideas ?

Just because a device tells you to format a drive does NOT mean you have to do it! It just means it cannot read the drive for any of a number of reasons.

Secondly a MPW is a “different” kind of external drive; not intended to be connected to anything but a computer; not to a NAS or anything else. (Get/read the complete user manual.) Only a “regular” HD can be connected to a NAS.

I have both a MPW and WD NAS. When I need for my MPW and NAS to be connected together for exchanging files, etc, I connect the MPW to my PC, and I can access the MPW and My Cloud NAS. Files transfer at gigabit speed on my system this way. (USB connection directly to NAS is slower)

Anyway, to use a MPW as a plain vanilla back up drive is kind of a waste of an expensive and specialized HD. Buy a regular drive to do this backup with; at half or less the cost of a MPW. I have a 4TB My Cloud that all material on it is from my various backups of the media files. But, as time goes on, it may not be, so I will soon connect a My Book 4TB drive to NAS to back it up. Price at Amazon, around $130. Duh, most definitely less cost than a MPW.

Hi, thanks for the reply.
The reason I wanted to use the MPW to back up the music, video and photo folders from my NAS is so that when I am travelling I can just grab the MPW and know that I have all my files with me, rather than have to refresh its content.

Well, that is not “backing up” files (for safekeeping) that is copying (duplicating) your files for another use-purpose, This is how the media files on my own MPW got there. I connected the MPW to my fastest PC via the MPW USB3 cable, got into my PC’s File Explorer of Windows (Finder on a Mac) and copied entire folders from my NAS to the MPW very quickly through my gigabit network. Later, if I only have a few new files to add from any source I can connect the MPW to PC again, access NAS again, or a drive downstairs if I want to, and copy those few files over to MPW. If I have just one new file, I often do it wirelessly.

Everything on my MPW came from somewhere else that is on one of my “backup” drives. I could lose the MPW today, but not lose any files not backed up somewhere.

Most of all, know that connecting a drive directly to NAS is the slowest way to move data. Connecting a drive, including the MPW to PC via USB3 is the fastest way to move data.

And, finally, if you do not have the MPW complete user guide, get it/read it from wdc.com Support section. A lot of this is explained there.

Now, if you are using the SD card to store photos on to your MPW as you take pictures, then you have an opposite situation since all your new photos are only on your SD card or MPW, so you need to actually back those photos up (for safekeeping) to a drive; perhaps on your NAS.

Let me know if you have any other questions.

Many thanks, your reply has helped.
I’m all sorted now.

Good, and thanks for the feedback.