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Snapshots are not backup, they are useful on their own. So are subvolumes and reflinks, and ext4 has neither of these.
by vetinari 3y ago
Snapshots are not backup, they are useful on their own. So are subvolumes and reflinks, and ext4 has neither of these.
- yjftsjthsd-h 3y agoWell, they can be backups, it just depends on what you're protecting against. Snapshots won't protect against complete hardware failure, destruction, or loss (lightning strike, house burns down, machine stolen), but they're great for accidental deletion or software corruption (the most dramatic case perhaps being something like rolling back a botched OS upgrade or running `rm *` in your home directory).
- doubled112 3y agoSnapshots are really useful when a ransomware starts encrypting a file share too.