Comment by hoherd

4 days ago

Online filesystem checking and repair.

Reading any file will tell you with 100% guarantee if it is corrupt or not.

Snapshots that you can `cd` into, so you can compare any prior version of your FS with the live version of your FS.

Block level compression.

>Reading any file will tell you with 100% guarantee if it is corrupt or not.

Only possible if it was not corrupted in RAM before it was written to disk.

Using ECC memory is important, irrespective of ZFS.