zfs discuss - Aug 2009 - StripeZ, Suggestion for Arrays with H/W R5 and Mirroring only.

There are some Disk Arrays that only support Mirroring or Raid5.

Raid5 stores the parity on a different disk, where StripeZ would store parity 
in the standard record size block. ie as long as you can read the block, it has
a chance of recovering it.  The Array H/W is responsible for ensure the Data is
not lost, the StripeZ has the ability to recover from chksum faults.  It would
use more disk than standard Stripe, but would give much better performance than
RaidZ on top of H/W Raid.

Pro''s/Con''s of doing such a thing?

Cheers
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