The 3-2-1 Backup Rule – Why Your Data Will Always Survive (2019)

Re:The 3-2-1 Backup Rule – Why Your Data Will Always Survive... by mastazi on Wednesday November 24, 2021 @08:58PM (#29337473)

They include external USB drives and NAS as different types, specifically about the NAS:

> can be considered statistically independent too since it is connected over the network and may survive if something bad happens to a part of your infrastructure.

So my interpretation is: e.g. a HDD connected over SATA, an external HDD over USB and a HDD on NAS are all considered different media types even though ultimately they are all based on spinning hard drives.

[ Parent | on HN ]

Re:The 3-2-1 Backup Rule – Why Your Data Will Always Survive... by dfsegoat on Wednesday November 24, 2021 @09:44PM (#29337709)

Because of the different interfaces to said drives? (USB vs. Network vs. SATA)

[ Parent | on HN ]

Re:The 3-2-1 Backup Rule – Why Your Data Will Always Survive... by mastazi on Wednesday November 24, 2021 @10:29PM (#29337959)

yes that seems to be the point. NAS is over the network, USB is supposedly "cold storage" (unless you keep it connected 24/7). Imagine something like: all drives on your desktop PC are compromised due to a PSU malfunction that causes a current or voltage spike - in that case, both NAS and USB cold storage would be safe.

[ Parent | on HN ]