Re: poor sata performance on 2.6

From: Jeff Garzik
Date: Mon Apr 19 2004 - 11:58:59 EST

Henrik Gustafsson wrote:

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.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at