RAID is a choice if you’re (generally) trying to maximize storage capacity against cost of drive capacity. It was born out of a lack of drives of sufficient capacity.
Mirroring is useful for protection against hardware failures - it’s not a backup.
Follow the 3:3 rule: 3 backups, in 3 different “locations”. Locations in quotes because 2 different cloud storage providers count as 2 different locations.
Whether your “local” backup (in your location, at a friend’s house, etc) uses RAID depends on your requirements, cost sensitivity, etc.
I have a couple RAID setups only because I always have spare drives around, and it’s relatively cheap to build a box to run something like UnRAID or TrueNAS which can take advantage of mixed drive sizes.
My current setup is an old file server with a large drive that is currently replicating to an external drive, a small NAS, and Crashplan.
Not an ideal setup since 2 backups are local (though my NAS is easy to grab and run with, weighs about 10lbs).
Next phase is to move to Storj.io and switch to a proper backup tool like Borg.
RAID is a choice if you’re (generally) trying to maximize storage capacity against cost of drive capacity. It was born out of a lack of drives of sufficient capacity.
Mirroring is useful for protection against hardware failures - it’s not a backup.
Follow the 3:3 rule: 3 backups, in 3 different “locations”. Locations in quotes because 2 different cloud storage providers count as 2 different locations.
Whether your “local” backup (in your location, at a friend’s house, etc) uses RAID depends on your requirements, cost sensitivity, etc.
I have a couple RAID setups only because I always have spare drives around, and it’s relatively cheap to build a box to run something like UnRAID or TrueNAS which can take advantage of mixed drive sizes.
My current setup is an old file server with a large drive that is currently replicating to an external drive, a small NAS, and Crashplan.
Not an ideal setup since 2 backups are local (though my NAS is easy to grab and run with, weighs about 10lbs).
Next phase is to move to Storj.io and switch to a proper backup tool like Borg.