As they say don’t put all your eggs in one basket, you would want to diversify them as much as possible to limit your exposure. Wrapping up: Back-ups are like investmentsĬonsider the data back-up files as your investment. Immutability is the key to successful ransomware protection because your data is converted to a write-once, read many times format that can’t be altered. of which one should be off-site (and maybe also offline) You should consider these rules also during your planning of the backup for Microsoft 365. This best practice tells you to have: Three copies of the data. In computing, immutable is defined as an object with a fixed structure and properties whose values cannot be changed. The 3-2-1 rule is one of the basics when talking about data protection. 3-2-1-1, with the extra ‘1’ representing immutable storage. The 3-2-1 backup rule helps keep your data safe from loss and theft. That’s why IDC recommends a new take on the traditional backup rule i.e. Unfortunately, to some degree, all of your online backups are vulnerable to ransomware attacks. Thus, remote back up is useful and remote should be as far away as possible i.e. On-site backups are great if you need to get to them quickly, but unfortunately, having a backup near the device that it’s backing up means that both of those copies are susceptible to data loss. keep at least one copy of your data in a remote location, such as off-site storage or the cloud. So, if you keep your primary data on an internal hard drive, store your backup copies on a different media. Two devices of the same type have a much greater risk of failing around the same time than two devices of different types. Store 2 backups on different media – There is a simple logic behind this rule. Thus, the 3-2-1 backup rule states that you need at least three copies of your data i.e. There should be 3 copies of data – Obviously, the more backup copies you have, the less are the chances of losing all of them at once. He used this term first while writing a book about DAM titled ‘Digital Asset Management for Photographers’. The term 3-2-1 was coined by US photographer Peter Krogh, who is also widely considered as an expert in Digital Asset Management (DAM).
This is where 3-2-1 rule for data backup comes handy.Īlso Read: Is Cyber insurance alone enough to protect your organisation’s data? However, if a fire breaks out in your home or office, it will destroy both your computer as well as the external drive containing the backup. If your computer crashes, you have the backup copy. For example, let’s assume that you backup your computer data to an external drive. While data backup is vital, one must also understand that having one copy of backup is not good enough. Keeping this data protected and backed up is very crucial. Organizations are dealing with increasing volumes of data while storing them either on-premises or in the cloud. In today’s digital era, data is one of the most valuable assets a business has.
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