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Maximize your Data Protection with the 3-2-1 Backup Rule



For Enterprises it is essential to always backup important information and have a proper plan of recovering the backup in case of failure. Reliable Backup is the foundation of availability.  When things will go wrong, data can be lost.

Loss of data has direct impact on business. In this Modern World, technology is constantly changing and bigger, faster and better ways are introduced for storing data, but the 3-2-1 backup rule has remained the same. This gold rule withstood the test of time and applies everywhere from data stored on physical hardware or virtual machine or on the service provider’s infrastructure.

What is the 3-2-1 Backup Rule?

The 3-2-1 Backup rule is very simple. It requires 3 copies of data to be stored on 2 different media or devices with 1 of those copies located off-site. Many enterprises nowadays practice 3-2-1 backup rule. For organizations to get the most benefit out of this rule they need to practice all three steps.

Maximize your Data Protection with the 3-2-1 Backup Rule

Let’s have a closer look at the three elements of this rule.

Three Copies of Data

Having one original and two other copies of data significantly decreases the chances of losing data if any of the storage device fails. To understand this concept let’s take the following example:

  • If a device has a chance of failure 1/50 and the second device has the same probability of failure, then the overall chances for losing the data are (1/50×50)
  • Similarly, if we add a third copy which has the same chances of failure the chances of losing data will fall significantly and will be (1/50x50x50)

Thus, having 3 copies of data will adequately protect your data and guarantee your users the best recovery solution in case of failure.

Copy of Data on 2 Different Media

3 copies of data can be stored on a single device, however if these copies are stored on two different devices the data will be more secure and protected. The storage devices for the data can be magnetic tapes, USB drives, Network Attached Storage (NAS) and dedicated cloud storage.

Despite of the fact that if the data is stored on a single device with 3 copies probability of losing the data is very low, yet, having your data stored on 2 different devices will be more appropriate approach for better data protection.

One Off-site Backup Copy                                                                                                                                                           

Storing Data copies in different physical locations is mandatory. Imagine what will happen in case of any natural disaster like a flood or fire. If your data is not stored on any offsite backup location, it will all be lost.  All copies will be destroyed and thus making the disaster recovery plan useless.

With off-site backup all users need is a network access to cloud storage and that data can be recovered from any location with internet access.

3-2-1 Backup Rule with Veeam and StoneFly

StoneFly completely understands the need of secure backup and recovery of data for their clients and choose to partner with Veeam, the biggest provider of availability solutions in the market. By using and Veeam backup and StoneFly cloud Connect to Amazon AWS or Azure our clients can have a proper 3-2-1 backup and disaster recovery plan.

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