Re: [PATCH] sata_mv: Fix broken Marvell 7042 support.

[Hein-Pieter van Braam <hp@syntomax.com>]

> Man, what a quirky BIOS!
> 
> Okay, so if I connect a drive and don't do anything in the Highpoint BIOS setup,
> it then corrupts the drive by overwriting the 9th sector on every reboot.
> 
> But.. if I connect a drive and go into the Highpoint BIOS setup,
> and "initialize" the drive there, and then set it all as a "JBOD volume",
> it then leaves the drive content untouched on subsequent reboots.
> 
> Screwy to the max.
> 
> So, I might be able to boot from it by cloning the disk *after* setting
> it to "JBOD" in the BIOS.  That will take a (longish) while to do.

I've just managed to boot with PXE and 2.6.23.9 and I have come to the
following:

* softraid still works
* sata_mv is a bit slower than the proprietary highpoint drivers (I get
300MB/s from my array rather than 400MB/s)
* they array works
* the content of the array seems to have shifted 'down' a bit, that's
probably why it won't boot. 

it's a tad weird, but I can see the data just fine when I dump the
content of the drives, but it seems to be in the wrong place.

I'll recreate my volumes with sata_mv now, see if it will work like
this.




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