3-2-1-1 rule. Recommendation for Offline backup

[jamcool]

I like the concept of the Offline backup but am not certain how to accomplish it. I know a tape system with WORM tapes would work but would a regular tape backup count as offline? Can you do offline backup with disk such as an NAS and make the storage act like a WORM? Would slow disk (7,200 RPM storage) be faster than LTO tapes for restores (lets say have 300 TB to restore)?

[Shestakov]

Hello Jason,
You can write backups on a regular tape and eject it. Thus it will be offline.
I believe you can also protect disk backups from rewriting.