Verify

[Stibbert]

Good morning.

I'm backupping an HD into a NAS to substitute with another of bigger size.

I know that FFS can verify the data transferred, writing a line in the cfg file.

I would know what happen if after a copy a verification fail...

The program automatically retry to copy?
The program announce that this file in not copied succesfully?

What other?

Thanks

[Stibbert]

How can I know if the copy is FULL reliable???