That’s why you should always combine media.Īlong with keeping a copy on a server, you can use some DAS (i.e., USB drive, SD-card, etc.) or NAS (if you have some money). In other words, you may lose two copies in the same accident. The thing is, while keeping data on the same storage media, you may lose them due to the same hardware issues. 2 different mediaģ copies are to be stored on 2 different media. Furthermore, storing data in one box is not smart because if that thing gets ruined, all 3 copies are gone too.
If one of them goes down, another dies soon too. Why does anybody need to store data like that? To make information whatever-proof! Keeping data on different disks inside one server or NAS box is risky because these devices are running under the same conditions and workloads. For instance, it can be drives of separate NAS boxes. You should also consider keeping these three copies on different devices. Following such a simple step will greatly increase information resiliency. Note that whenever I say “3 copies” here, I mean three copies of data excluding the original data! Create a primary copy first, and the rest need to be the duplicates of this one. Since the 3-2-1 rule is all about redundancy, you need to have at least three backup copies of your data.
Here’s the 3-2-1 backup strategy in a nutshell. This being said, a good backup strategy is a sure way to protect your data from any malfunction, erroneous activity, or disaster coming your way. Just brace yourself for that, namely, do backups!īackups are good, but they may be useless without redundancy. Revolution, robbery, and simple mindless damage? Anything can happen, and you need to make sure that whatever misdeed or just bad luck comes into motion, your data are safe. Thus far, in order to protect your information, it is necessary to live with the mindset that sooner or later something may go wrong.
Data, in their turn, weight too much for companies and people at large. It is absolutely true that today’s hardware and software are fragile. Why one does backups? To have a copy of data at hand if something goes wrong. Why Does the World Need a Rule Like That? I decided to write an article discussing this strategy in detail to make sure that guys new to IT will keep their data safe. Remember Blade Runner 2049, when people lost all their valuable data in The Blackout? Thanks to the 3-2-1 backup rule developed by Veeam, a disaster like that will never come true.
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