I have a lot of files, mostly png and pdf, some svg, some various others, that need to be transferred. Multiple TB worth, files individually aized anywhere from a few kb to a few mb. The problem is that I have to transfer them remotely from a site that has poor upload (200kb 0 700kb/sec).
It's important I back up these files asap, but currently over the wire is the only way. This is going to take weeks, which is far too long. Unfortunately, I don't have anyone local I can trust to manually tranfer and send me the hard drive. So I'm left with compressing as much as possible to small files.
I have used 7-Zip on Ultra compression (LZMA2) to archive the files and split into 10mb chunks (in different groups for different categories of files). This worked great.
If I do the same thing to all of those together, compress all the groups (separated by folders) into a single 7-Zip Ultra LZMA2 10mb split archive, will it help at all, or will it be a waste of time? Will it be able to merge data to compress to higher degree and result in less overall 10mb files?
NOTE: The reason I broke it into chunks is because it will take a long time to transfer no matter what, so small chunks will prevent a network failure, computer restart, or any other issue to screw up the whole thing.