This is a good rule to follow.
It's not enough to just have a copy of a directory on the same block device. You need to save your data onto another device entirely.
Past that, do it on another machine. Take it further:
- Back your shit up to an external drive that you only connect for syncing purposes
- Back this external drive up to another one and store it in a safe, only syncing it a couple times per year
- Have another one that you only sync yearly and store that at a relative's house
- Sync your shit to an S3 bucket with at-rest encryption
Bonus points if you encrypt your shit before you even store it.
Store your encryption key in your brain or on paper in a bank lockbox.
This is a good rule to follow.
It's not enough to just have a copy of a directory on the same block device. You need to save your data onto another device entirely.
Past that, do it on another machine. Take it further:
* Back your shit up to an external drive that you only connect for syncing purposes
* Back this external drive up to another one and store it in a safe, only syncing it a couple times per year
* Have another one that you only sync yearly and store that at a relative's house
* Sync your shit to an S3 bucket with at-rest encryption
Bonus points if you encrypt your shit before you even store it.
Store your encryption key in your brain or on paper in a bank lockbox.
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