Re: poor sata performance on 2.6

[Jeff Garzik]

Henrik Gustafsson wrote:
> [cut]
>
> > I _really_ like the SX4 -- it gives the programmer full control over 
> > all aspects of RAID operation, while providing useful hardware 
> > acceleration where it's needed.  And not getting in the way of the 
> > programmer, when it's not needed.
>
>
> Does this mean that the hardware-accelerated RAID5-mode will be 
> compatible with soft-RAID5? So that I am able to create a RAID5-array 
> today and get all the goodies from hardware-support later without having 
> to do the backup - recreate-array - restore dance?


Who knows.  It depends on the XOR algorithm block size and such.  I 
_think_ XOR'ing is compatible, but have not tested to verify that assertion.

	Jeff



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