Industry best practice is to follow the 3-2-1 Rule or the 4-3-2 Rule. Having backups and a disaster recovery solution that utilizes cloud storage can help follow those guidelines. The 3-2-1 backup method is a data protection strategy that recommends having three copies of your data in different locations to protect critical data in case of a backup failure:
3 copies: Have at least three copies of your data, including the original and two backups
2 types of media: Store two of the copies on different types of media, such as a flash drive, external hard drive, or cloud storage
1 offsite copy: Store at least one copy offsite or in the cloud in a remote location
Offsite backups can protect against disasters, theft, unauthorized access, or cyberattacks. A related backup strategy is the 4-3-2 rule, which involves storing four copies of data in three locations, with two of those copies being offsite. This strategy can help protect against natural disasters.
