I have a large folder structure (i.e. 2-3GB worth of data) that needs to be verified against a separate structure on another drive.
Is there a way to checksum the entire directory structure to ensure that the two structures, as well as all file contents, match exactly?
A checksum won't help you in this circumstance, as the same process is going to be reading both sets of data. A digest value like that is useful when you have to communicate across processes or systems (in other words, different "things" are reading the different targets) so that you can pass a smaller set of data across the communication channel.
In your case, your application is going to be reading both, so a simple comparison is going to be your best bet.
