Christian Auby wrote:
You are describing the copies parameter.  It really
helps to describe
it in pictures, rather than words.  So I did that.
http://blogs.sun.com/relling/entry/zfs_copies_and_data
_protection
 -- richard

It's not quite like copies as it's not actually a copy of the data I'm talking 
about. 10% parity or even 5% could easily fix most disk errors that won't 
result in a total disk loss.

Do you have data to back this up?

Basically something like par archives.

par archives are trying to solve a different problem.

"Only useful for simple workstations" isn't exactly "only" in my book. That 
would account for what, 90% of all computers? (97% of statistics are made up)

Uep: Yeah it could be implemented by extending the checksum in some way.

Pedantically, if the checksum has the same number of bits, then it is a copy.

I don't see a performance issue if it's not enabled by default though.

Eh?
-- richard

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