I'm writing a program that wraps around dd to try and warn you if you are doing anything stupid. I have thus been giving the man page a good read. While doing this, I noticed that dd supported all the way up to Quettabytes, a unit orders of magnitude larger than all the data on the entire internet.
This has caused me to wonder what the largest storage operation you guys have done. I've taken a couple images of hard drives that were a single terabyte large, but I was wondering if the sysadmins among you have had to do something with e.g a giant RAID 10 array.
i've transferred 10's of ~300 GB files via manual
rsyncs. it was a lot of binary astrophysical data, most of which was noise. eventually this was replaced by an automated service that bypassed local firewalls with internet-based transfers and aws stuff.