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I would not trust this. What I would trust: A backup medium (SSD or whatever) which only allows writes to empty space. Unless a switch is manually switched fr
by TicklishTiger 5y ago
I would not trust this.
What I would trust:
A backup medium (SSD or whatever) which only allows writes to empty space. Unless a switch is manually switched from "write" to "update".
In "write" mode, it would only allow writing to empty space.
In "update" mode, it would allow writing everywhere.
I would leave it in "write" mode most of the time. For me, a typical SSD has enough space for years of incremental backups. If I should ever want to delete old backups, I would set it to "update" mode to do that and then set it back to "write" mode.
- rich_sasha 5y agoIs this also true for random OS churn etc? Basically when using the SSD as a “persistent cache”
- creshal 5y ago> A backup medium (SSD or whatever) which only allows writes to empty space. Unless a switch is manually switched from "write" to "update". Why is your backup medium not encrypted?
- hulitu 5y ago> Why is your backup medium not encrypted? If you lose the key, you lose the backup.
- tinus_hn 5y agoYou could probably get a tape to work like this if you can prevent rewinding.
- compsciphd 5y agoi.e. a log structured file system.
- compressedgas 5y agoSpecifically a WORM. Like Plan 9 had with Fossil and Venti or as in Foundation https://swtch.com/~rsc/papers/fndn/ https://swtch.com/~rsc/papers/fndn/