What is a backup?

What is a backup?

All organizations should have backups of their data. Backups are a simple form of disaster recovery (DR) to be protected against contingencies like system failures, faulty updates or cyberattacks.

What is a backup and what is it used for?

A backup is a copy of data that is taken and stored somewhere else so that, in case of a data loss incident, data can be recovered and restored. Relying on a basic backup schedule is important to ensure data durability and disaster recovery. The periodicity of a backup schedule is closely related to the main objectives of DR plans: RTO and RPO. The frequency varies depending on the data, applications and workloads’ criticality.

According to The State of Backups report of 2021 by Backblaze, 20% of computer owners have never backed up all the data in their systems. This percentage, although still very high, has been constantly decreasing since 2008, which was about 35%.

Why does your company need to have a backup?

Actually, a more accurate question would be: why does your company need to have AT LEAST one backup? 

Backups allow companies to safeguard critical data, reduce downtime in case of an incident and increase customer confidence.

As mentioned at the beginning, backups are an important element of any contingency plan or disaster recovery plan. In addition to helping companies safeguard critical data and ensure data durability, backups can reduce downtime in case of a contingency. Because companies can resume operations faster during a hardware failure or any other emergency by restoring their backups in a different server or a cold spare.

Furthermore, backups are a basic action companies can take to reduce the risk of data losses and data thefts, as well as to increase customer confidence.

How many backups should you have?

For guaranteeing further data durability, it is recommended to store at least one backup in a remote location, different to the company’s main systems. This way data will also be protected against disasters that can damage physical systems, such as floods or fires in data centers.

On this matter, organizations can base their backup strategy on the “3-2-1” rule. According to this rule, organizations should:

  • Have at least 3 copies of their data.
  • These copies should be stored in 2 different types of storage.
  • 1 copy should be located offsite.
"3-2-1" backup strategy

At Stackscale, we are aware of the importance of backups nowadays. That is why our network storage volumes — Flash Premium, Hybrid Plus and Hybrid — include a basic backup and replica schedule by default. In addition to this, we also offer a network storage volume specially designed for backups and archival: Archive.

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