So my new unraid build seems to be functioning properly. I currently have 7TB of storage and a 3TB parity drive in my array. I'm ready to start transferring data. From my former Windows Vista server I have 10-12 2TB HDDs loaded with bluray and DVD .iso files along with music, pictures, and home movies. The pictures and home movies are backed up in at least four other local/cloud locations, so I'm not worried about that data right now. But for my bluray and DVD .iso collection, my only real risk is having to re-rip a large collection which takes time that I don't want to spend. So my plan is to put one of these data HDDs into my workstation and transfer the movie folders to the unraid //media share and then clear the original HDD for later use in the unraid array. Eventually, all of these drives will be emptied, cleared, and added into the array so there will be no backups of these files. How do you recommend I verify the integrity of the .iso files between the newly created unraid copies and the original rips on my HDD? I can't really open and watch each movie before I delete the .iso from the HDD. Is there software that you can recommend that compares file to file or folder to folder looking for corruption? A little corruption, as you know, is all it takes to make these .iso files unplayable. Thanks for any help!

If you can see both files at the same time from a windows box you can use clonespy. If the files are duplicates, you can tell it to automatically delete the files off the source drive, and any files that are left have some issue. The clonespy program defaults to some safe settings, you will need to look over all the configuration options to make sure it scans all the files.

Duplicate Files using Linux CLI

If your on a windows machine you can use http://codesector.com/teracopy and there is an option for CRC comparison. Teracopy is very convenient for large file transfers.

If your on a windows machine you can use http://codesector.com/teracopy and there is an option for CRC comparison. Teracopy is very convenient for large file transfers.

 

Thats what I use

Yes, I verify with Mucommander for Mac.

Thanks for all of the replies. My workstation is Windows 7 based. I was so focused on the workflow of moving data and then using a utility to verify error-free copies that I didn't even consider that there was probably an application that did both. So I checked out teracopy first and used it to send/test about 50 full sized bluray .iso files to the new server. It's a slow transfer, but considering that it's moving and checking in the same transfer, and I have a parity drive running, it's plenty fast and very hands-off. Thanks for the recommendation. Not sure how I missed it before.