Synology NAS Erased My External Hard Drive?

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Synology NAS Erased My External Hard Drive?

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DS1019+
Operating system
  1. macOS
  2. Windows
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I'm new to Synology NAS systems, having previously used Western Digital EXUltras. Today I moved a massive amount of data from two Macbooks that I am selling, along with data already on the external hard drive, to my new Synology 1019+ NAS. In total, 12TB of photos, UHD video footage from vacations, etc. I attached my external hard drive to the Synology NAS via USB, and then in File Station I dropped/dragged my files from the external hard drive folder to the Synology Shared folder "Videos Backup". Overnight all the files were successfully transferred to the NAS as a backup.

However, to my shock the external drive had been wiped clean, and two folders were now added by the External hard drive - @temp and @eaDir. Can someone explain what setting caused this, or what mistake I made when transferring the files? When dropping/dragging, I received no warnings or confirmation requests about deleting my original data. I tried again today with one file. Again, same result. My external hard drive was wiped of the file.

In the WD NAS, drop and drag did NOT work like this. It simply cloned your data to the new NAS. I'm stunned that the NAS gave no warnings that the external disk would be erased. I'm profoundly luckly that I just happened to take a quick glance at the external hard drive folders, or I would never have known that my backup was deleted. Any clarification would be appreciated. I don't see any direct answers when searching the Synology Forums.


Thank you!
 
Can someone explain what setting caused this, or what mistake I made when transferring the files?
Welcome to the forum.

Occam's razor suggest that you moved, not copied the data that would explain this result. As for the @temp and @eaDir, these are results of the indexing service on the DSM side.
 

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