The 3-2-1 backup strategy: “Three copies are made of the data to be protected, the copies are stored on two different types of storage media and one copy of the data is sent off site.”
Any redundant backup strategy uses both. They both have inherent data loss risks. Local backups are great, but unless you store them in a bunker they are still at risk to fire, theft, vandalism and natural disasters. A good backup strategy stores copies in at least three locations. Local, off-site and the cloud. Off-site backups are backups you can physically retrieve. Like tapes stored in a vault in another city.
Time and time again, data hosting providers are proving that local backups not connected to the internet are way better than storing in the cloud.
The 3-2-1 backup strategy: “Three copies are made of the data to be protected, the copies are stored on two different types of storage media and one copy of the data is sent off site.”
How would that work in practice? 1 medium offsite, and 2 mediums on-premises?
Exactly.
This is the way.
Any redundant backup strategy uses both. They both have inherent data loss risks. Local backups are great, but unless you store them in a bunker they are still at risk to fire, theft, vandalism and natural disasters. A good backup strategy stores copies in at least three locations. Local, off-site and the cloud. Off-site backups are backups you can physically retrieve. Like tapes stored in a vault in another city.