Re: Almost fix for detecting FastTrack 100 "Lite"

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Hiya.  Dunno if this is useful, but in case it is, please see inline...

On Mon, 2003-04-28 at 15:27, Shane Kerr wrote:

> I saw some suggestions that Linux software RAID would be fine if you
> don't need compatibility with non-Linux systems.  Since this is a
> Linux-only box, I tried that.  Unfortunately there is no way to disable
> the RAID features of the Promise built-in controller, at least not
> through the boot screens.

Well, sorta.  I have an Asus A7V333, w/ FastTrak133.  I'm going to
assume it's fairly similar to your FastTrak100.

Under the FastTrak BIOS, what I did was create TWO arrays, one for each
disk.  So the first RAID array is, effectively, hde, and the second one
is hdg.

>   Additionally, the Promise BIOS demands that
> there be a RAID array defined or it will automatically create one.  When
> I tried to access the disks separately through /dev/hde and /dev/hdg
> this at first appeared to work, but then I started getting IDE errors,
> the drivers did strange things like disabling DMA, and so on.  

I initially tried a bunch of things to be able to use the "hardware"
RAID that Promise advertises.  Various things I read, combined with the
fact that I couldn't get their proprietary drivers to work, caused me to
give up.  Instead, I treat the two drives as, well, two drives.  I've
attempted to partition my installation so that the obvious "busy"
partitions are not all on one disk.

After installing RH-7.3 (supported "distro" for us within Cisco), I've
been running pretty smooth for a month or more.  The bulk of my twin
60-Gb drives are empty (empty partition, unformatted).  When I get some
free time (yeah, right 8*), I intend to use the kernel's md driver to
stripe (raid0) the two unused 50-Gb "chunks" on my drives. 

The bonus is that if anything goes really wrong, I can swap the drives
to a different (non-Promise) box and still be able to get to my
partitions. 

-- 
klash        |       |      I feel like I'm diagonally parked
            .|.     .|.     in a parallel universe.
           .|||.   .|||.    
         .:::::::.:::::::.  





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