Hello,
What I wanted to point out is the Al's example: he wrote about damaged data.
Data
were damaged by firmware _not_ disk surface ! In such case ZFS doesn't help.
ZFS can
detect (and repair) errors on disk surface, bad cables, etc. But cannot detect
and repair
errors in its (ZFS) code.
I am comparing firmware code to ZFS code.
Firmware doesn't do end to end checksumming. If ZFS code is buggy, the
checksums won't match up anyway, so you still detect errors.
Plus it is a lot easier to debug ZFS code than firmware.
--
Regards,
Jeremy
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