This is technical article on storage for Editors. I always say it is not a matter of “if” a drive will fail it is “when.” Remember these are all machines with moving parts. Even SSD have a lifespan. If you are getting paid to create something for a client, I believe you have a responsibility to safeguard that data while it is in your hands. Both in terms of privacy and redundancy.
Check out the article and different perspectives from some of the biggest names in the storage industry for media professionals.