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 mean dd claims they can handle a quettabyte but how can we but sure.
dd if=/dev/zero of=/dev/null status=progressdd can’t really handle quettabytes! GNU has taken us all for fools! Alert the masses! Wake up sheeple!