USB 3.0 6TB HDD I would say between 10 to 14 hours if doing a full format and everything is working optimally.
Best guess for me as there are a lot of factors, the spin speed, actual USB performance, health of the drive etc..
As I recall a reasonable rule of thumb would be 2 hrs per TB for USB 3.0
“USB 3.0 6TB HDD I would say between 10 to 14 hours if doing a full format and everything is working optimally.”
Yep! I really doubt he did this. A 1.6 TB dump on disk not fully formatted is going to take a LONG time as the disk is formatted on the fly.