Taking ages with full backup - even though it says 100%?

I ran a full file backup because I wanted to start fresh after a database corruption. Usually I’m doing only incrementals.

The indexing/hashing/whatever it is doing is going to take another 24 hours according to my calculations (the speed went down from 2 files per second to 1 file), which would make it 48 hours in total.

I need to physically move the server to another location, but I don’t know if shutting it down would damage this operation or whether it would resume it afterwards. Any idea? :thinking: