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exFAT is such a file system. It doesn't have journaling but why do you need journaling on backup media anyway?
by sedatk 6y ago
exFAT is such a file system. It doesn't have journaling but why do you need journaling on backup media anyway?
- toyg 6y agoBecause shit can happen even when you're backing up...?
- sedatk 6y agowhat kind of shit can happen without you knowing when backing up?
- toyg 6y agoPower loss. I mean, backing up is the literal definition of a nightly job...
- slim 6y agoYou restart the backup process, maybe ?
- toyg 6y agoNot if your target FS is corrupt.
- sedatk 6y agoSo, what does a journaling FS helps in a power loss? You just restart backup anyway. What’s the concern there?
- toyg 6y agoThe health of the backup device. Restarting a backup is one thing, having to rebuild a disk is another.
- sedatk 6y agoYou don't need to rebuild a disk because some clusters were orphaned. It doesn't mean disk was corrupt, it just means there is some allocated space that isn't used. It's trivial to fix too. There is no danger there. Actually, what journaling does is to rollback that allocated space. Doing that manually doesn't make it less safe. For backup scenarios exFAT is perfectly feasible.
- toyg 6y agoWhat is feasible and what is desirable are two different things. With journalling, I don't have to know or care about any of this: I restart and chances are it's all back to normal. This is desirable. You can store your backups on stone tablets, with a machine that carves rock to write 1s and 0s and a conveyor belt that feeds new tablets. That is perfectly feasible. It is also not desirable.