Teracopy undo delete

[mmmmmdonuts]

I have an old server running that I recently migrated over to TrueNas successfully after running into major Esxi issues.

Once I got it running over to TrueNas I was attempting to do a backup to an external drive before upgrading my server hardware. I used Teracopy to copy the data to a 12TB hard drive.

For some reason teracopy deleted 3,000+ files but copied over 15,000+ files over. There was about 9TB of drive in use at the time. It looks like I lost about 1TB of random files according to the Teracopy log. Both disks still show space available. I use teracopy mainly because of the verify feature and it seems to handle errors better than Windows on huge copies. Does anyone have an idea how I could possibly recover this? Does the paid version have any features that may help?

 

[mmmmmdonuts]

Bump...does anyone have any thoughts?

 

[i386]

I have nothing that can help you with your case, only general advice...
Read the manual, documentation or help before you try to run tools/commands and always test it with unimportant data/copies of your data instead the original ones and then verify that the result matches your expected result ._.

 

[BlueFox]

Used this in the past, but I'm sure there are numerous alternatives, some of which may be free: Disk Recovery Software and Hard Drive Recovery tool for Windows, Mac, and Linux

 

[mmmmmdonuts]

So using recovery software how does it work? It just looks for recently deleted files? Or do I have to direct it what to look for?

Unfortunately I tested it first and have used it many times in the past without this issue. I don't know if it's because of the size of the copy that this presented the problem or why it exactly happened. I am still replaying that in my head.