The 3-2-1 backup rule provides additional benefits, which include: Benefits of the 3-2-1 backup Ruleīackups are crucial for all businesses and organizations. Keep one copy in your office and another on a different physical site. With this, you shouldn't store two backup copies in your office. This means it should be stored in a different place than other data copies. The third part of this rule is ensuring that one copy of your sensitive data is stored in offsite locations. As such, you can't satisfy the 3-2-1 Backup rule by keeping multiple copies of backups in the same cloud or RAID array. You shouldn't store different copies on different hard drives on the same server.ĭoing this means you'll lose both copies if the server fails or is inaccessible. One of the storage devices might be a file server, while the other is a network-attached device or flash drive. Use Two Storage Media for DataĪccording to the second part of the rule, two copies of backed-up data should be stored in two physically independent devices. While you can create data backups at different points in time, it isn't part of the 3-2-1 Backup rule. You can't satisfy the first rule of this strategy if one copy of backed-up data differs from the other two copies. Worth noting is that all copies should have the same version of the information. All copies should be configured and stored in a way to ensure they remain intact, even if the additional copies disappear or fail. The first copy should be the original or production data used for conventional purposes. The first part of this strategy is ensuring that you have at least three different copies of important data. The 3-2-1 backup rule has the following requirements: Maintain Three Copies of the Data Read on to understand more about the 3-2-1 Backup rule. According to the rule, you should have a minimum of three copies of data, two backups on different media, and one offsite or in the cloud to manage your data effectively. Superficially, the 3-2-1 backup rule is a backup strategy that increases and diversifies the number of backups used. According to the Cybersecurity and Infrastructure Security Agency, businesses and organizations should observe the 3-2-1 backup strategy for assured data safety. While data disasters are inevitable, having a planned backup strategy can mitigate its damaging effects.
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