What does "mount path" means when adding additional storage in Storage Configuration

Apps and Virtualization
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1

I recently installed Syncthing and I want the app configuration to be stored on a separate dataset as the shared data, so I created the “Syncthing_DB” dataset for the configuration data and “Syncthing_Share” for the data I want to share.

In the storage configuration, I put the Host Path for the “Syncthing_DB” dataset, and then I clicked “Add” in the Additional Storage to add the “Syncthing_Share.” To my surprise, in addition to the Host Path, there is a “Mount Path.” Can somebody please explain to me what it is ? I just use the same path as the Host Path for “Syncthing_Share” and it seems to work but I still don’t understand what the “Mount Path” means.

I am on TrueNAS Community Edition 25.04.1. I am new to TrueNAS and I have a very basic understanding of Linux shell commands.

2

Mount path is the path at which the host path will appear inside the container.

3

Does that mean that is the path that an app “sees” within the container? Does it matter what path I give it? Can I just make it a root / path?

Will the mount path conflicts with other apps?

4

Yes - exactly that. The container has its own virtualised file system.

You should definitely not mount the dataset at the virtual / though, because that will make the rest of the already existing virtual file system inaccessible.

So if it were me I would mount the shared dataset as /Syncthing_Share and you then use this path when you use the syncthing admin screens.

And to answer the other points:

  1. Each container has its own virtualised file system - so no issue with conflicts with other containers or the real file system.

  2. You shouldn’t need to use Linux shell commands for setting up syncthing.

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5

Thank you! That is very helpful!

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