The servers at my lab were recently hacked (ransomware attack) and I've been assigned to make our network more secure.
I propose doing weekly backups with an SSD-cached RAID (10-20TB range) that is physically isolated from the network. Every week, I'll go upstairs and manually connect the backup device and run the program (leaning towards rsync on a linux system).
Searching the internet for a while, I've found very little infomation and no products related to this scheme. Hopefully this community can help me by answering these questions.
Can I buy devices that do what I want, or do I have to make them myself?
Is physical isolation overkill? Why is it so rare?