Hello, I am using a software called Goodsync so sync my data to my unraid box .. I copied 1.73 TB on unraid using it ... I then deleted the source file (from my computer) then the software (goodsync) propagated the deletion to the unraid box .. problem is that space used it still showing up as 1.73 TB on unRaid ... what is happening !

Check the gs_data hidden folder on the server. The default setting is for goodsync to keep a copy of all deleted files for about 30 days. You'll need to change these settings on a per-job basis.

 

From the Goodsync website:

Q: Can I retrieve files that GoodSync deleted or changed during Sync?

A: If option 'Job -> Options -> Save deleted/replaced files, last version only' is checked (it is checked by default) then GoodSync saves the last version of every file that it replaces or deletes to the _gsdata_\_saved_ folder that is located inside your sync folder.

So GoodSync has its own 'recycle bin' that works not just on Windows file system, but also on servers.

You can get back deleted/replaced files back by opening folder your-sync-folder\_gsdata_\_saved_ in Windows Explorer and copying the files or entire folders back to where they used to be.

Note that folder _gsdata_ is hidden, so you should enable showing hidden folders in

Windows Explorer -> Tools -> Folder Options -> View -> Show Hidden Files and Folders.

To get files back from _saved_ folder on a server, use GoodSync Explorer.

... and in the future, if you're going to use a synchronization utility, READ the manual and be sure you know all the options before you use it !!

 

You obviously had it set to "mirror deletions" -- which is NOT a good idea if you're using this to do backups.  The whole concept of a backup is to be able to retrieve files that you've lost for a variety of reasons ... including accidental deletions.  In any event, it's lucky that it doesn't really delete things !!