Will jails duplicate my files(meaning double the size for one file)?

[twsps]

Hi all,
I set up next cloud jails source from my shares location to destination under jails /mnt/. I finished setting up external storages under nextcloud. My concern is when I create a file under NextCloud, the file will also shown under my shares. Does this mean my files has been duplicated?

Another saying is, when I set a dataset from a source to a destination under jail, will the files be duplicated? Or they are alias?

 

[kdragon75]

If nextcloud is using the external dataset, no.

 

[twsps]

If nextcloud is using the external dataset, no.

I mean by this (described in my attached image)

Thanks.

 

[8-bit Yoda]

Still no.
https://forums.freenas.org/index.php?threads/jail-storage-data-copied.63554/