Data Hoarder

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We are digital librarians. Among us are represented the various reasons to keep data -- legal requirements, competitive requirements, uncertainty of permanence of cloud services, distaste for transmitting your data externally (e.g. government or corporate espionage), cultural and familial archivists, internet collapse preppers, and people who do it themselves so they're sure it's done right. Everyone has their reasons for curating the data they have decided to keep (either forever or For A Damn Long Time (tm) ). Along the way we have sought out like-minded individuals to exchange strategies, war stories, and cautionary tales of failures.

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The 3-2-1 rule (alien.top)

submitted 1 year ago by [email protected] to c/[email protected]

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I've always heard that you folks like to keep tons of backups of your stuff. I have also heard that there is this 3-2-1 rule about keeping you backups. My question is: do you follow it personally or is it something that people just tell you to follow?

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[–] [email protected] 1 points 1 year ago

3-2-1 is a suggested default backup strategy.

3 backup copies. 2 different types of media. 1 copy stored remotely.

I use a mix of backup strategies. 8-3-3 to 1-1-0, depending on what it is I backup. For example, I have two internal SSDs on my PC. Every boot a new updated versioned rsync snapshot of the primary SSD is automatically created on the secondary SSD. Only new and modified files are actually copied. Files present in the previous snapshot are simply hardlinked. So each snapshot looks like a full copy, but takes up very little storage and is very fast to make.

In addition I have two large DAS, a small NAS, a small cloud account and various external drives and devices, some stored with relatives. They are also used for backups.