Is copy and paste for large files exact?

[philjayj]

I've tried looking online for an answer but couldn't find anything. Basically, when copying a load of mkv files from one drive to another, is the copied file an exact copy? Lets say I copy/paste a 50GB file, is there any chance of the copy not being the same as the original?

Cheers

 

[philjayj]

Bit of a strange question. Are you just concerned about data corruption when copying large amounts of data? As mentioned above I'd just generate a hash of each file and then do a check after the copy to confirm all is intact.

If the hashes match, then the copy is a perfect match.

Yes, it's mainly data corruption I'm worried about. I'm currently copying about 30TB of mkv files to LTO8 (just using LTFS, not Veeam or anything like that). It would be a disaster to recover a file and discover it's corrupt.