Sync two drives same computer

Support
1

How can I set the “Remote Device” so that Syncthing sync’s folders between two drives on the same computer?

2

You cannot do that. It’s only possible if you run two separate Syncthing instances on the same device.

3

What @tomasz86 said.

However, you can use another tool, Unison, for this.

4

Thanks for the response.

Would I have to install Syncthing on both drives of the same computer like drives E:\ and D:?

5

Thanks for the response.

I am looking into the “Unison” documentation to see if it is a good fit for my application.

6

No, you can just run the same Syncthing binary twice using a different path for --home to store the configuration and database. However, please keep in mind that unless you know exactly what you’re doing and why you need to set it up like that, this way of synchronising files on the same system with multiple Syncthing instances in comparison with other local-only tools is very inefficient and resource hungry.

7

Thanks again for the response.

I have a two RAID 5 Arrays, one SSD and one HDD.

I use the SSD and have the HDD as a backup in the event of a drive failure in the SSD array.

If a failure occurs I will backup the information on the SSD array to HDD array while I correct the failure and then proceed as normal.

I would like to keep both the SSD and the HDD arrays in sync to minimize the disruption of a failure.

I think “Unison” may be a better fit.

I am looking into it now.

8

If that’s the case and you’re only interested in one-way synchronisation, then I think you may want to look into FreeFileSync. The program has one advantage over other local sync solutions for Windows, which is that if you run it as Administrator, then it can copy files that are in use and locked by the OS. It does it by utilising shadow copies.

1 Like
9

Note that if you use a sync tool to mirror the contents of the SSD array while the RAID 5 is in a degraded state, you’ll very likely be deleting good files from the HDD array, so you may need to configure the sync to be additive and also not overwrite existing files.

10

I suggest you use a backup program instead of a sync program. There are many to chose from.

1 Like
11

Thanks for the reply.

I will look at “FreeFileSync” in addition to “Unison”.

12

Thanks for the reply.

I will query GitHub for “backup Programs”.

13

Try to start 2 docker nodes on your machine, and use different ports. Maybe this help? :wink:

14

Thanks for the reply.

Not sure how to accomplish this since it is hard to get past the setup screen when it requires that I specify the ID of the “Remote Device” before I con proceed further.

Setting up two Docker Nodes using different ports on a RAID 5 array may be non-trivial.

Any ideas on accomplishing this?

15

Supply the ID of the remote then. :slight_smile: You can see that ID on the Syncthing GUI on the remote.

16

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.