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THREE Rs OF DATA PROTECTION
RELIABILITY >> REDUNDANCY >> RECOVERY >>

RELIABILITY
Reliability is the backbone of data protection, and it extends to everything you do — from the equipment you select, to the rotation schedule you define, to the care and handling of your media. There are many elements to ensuring rock-solid reliability, but it all starts with having a plan.
REDUNDANCY
A single layer of data redundancy is not adequate. If it were, we'd all just make another disk copy of our files and be done with it. (Until something unforeseen happened.)
But that's the point: Backup is about something unforeseen happening. And all types of data are vulnerable to loss.
Given that there are myriad ways to lose your data, it's good to know there's one best practice for building it back: having multiple copies of your data on multiple medias in multiple locations.
RECOVERY
Of course, the best test of any backup plan is the ultimate one: Can you recover your data (And what, exactly, does recovery mean?)
Within the context of Best Practices, it means you should be able to restore files completely to the latest file version. For audit purposes, you'll need to be able to recover files to a specific point in time.
Believe, then, that you are fundamentally in the business of recovery – not a "write-once, read-never" exercise. |