ZFS the perfect FS? if only...

[Ivan Voras]

Elliot Finley wrote:
> If you could start with a 3 drive zraid2 as the underlying pool
> storage and later add drives to the existing zraid2 as space was
> needed, then ZFS would be the ultimate FS (at least for me).
> 
> Any takers?  How hard would this be?

Isn't zraid2 like RAID6, e.g. includes 2 "parity" components? How do you
propose to redistribute the parity blocks after a disk is included in
already functioning RAID5 or RAID6 volume?

(hint: http://en.wikipedia.org/wiki/RAID5#RAID_5)

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