Not quite clear there...

You're copying data from the source, to harddrives... and then to a server with different drives?

Assuming it's just lots of smallish data files / media and not OS files (ie don't need symlinks, attributes, ownership, etc) then any backup software which generates hashes to be able to repair the archive during a restore would do.

Btrfs doesn't need LVM, but I wouldn't use that on mobile drives.

Or... is this one huge 80TB file?