Chapter 2: The 3-2-1 Rule – Keeping Data Safe
When it comes to protecting your data, you must have more than one copy to ensure data safety. In this chapter, we will cover the 3-2-1 rule and what it means. You will learn how to take this information and set up your backups based on this rule. You will also learn about the different types of media, such as replication, snapshots, and even Capacity Tier Copy Mode (part of SOBR). If you adhere to the 3-2-1 rule, it ensures your data is safe, and at least one copy is offsite, which is where the 3-2-1 rule for backups comes into play:
- 3 copies: Keep three copies of your data, one being the primary and two being the secondary copies.
- 2 media types: Store your backups on at least two different types of media.
- 1 offsite: Ensure that at least one copy of your data is kept offsite.
In this chapter, we're going to cover the following main topics:
- Introducing what the 3-2-1 rule is
- Understanding how...
