Erich,

I am planning on trying to use the Promise Ultra66 tonight (want to beef
up performance).  I currently have RAID5 running with a Promise
EIDE-MaxII card quite nicely.  I know about the 2.2.14-B1 patch for
RAID, but which promise patch are you referring to?  I see that Promise
has a beta driver on their website, and this list pointed to:

http://www.csie.ntu.edu.tw/~b6506063/hpt366/

which references  a patch by Andre Hedrick for Ultra66 support.  Which I
assume is the same as you reference below.  Have you or anyone looked at
the beta driver on the promise site?

Doug Egan

Erich wrote:
> 
> I'm the one who originally posted the question, and now I may have an
> answer (with help from the list):
> 
> > I've tried doing that, 2.2.14 adding both patchs.
> > mostly they failed everywhere. then once I did it get it in, and compile,
> > it still never worked right, I change to 2.3 kernel, even tho alpha/beta
> > kernels are buggy, alteast it's working for now. Hopefully in next couple
> > weeks/months 2.4 , or 2.2.x will have patchs in it, Others in this list do
> > have it all working fine tho.(probly just me)
> >
> > Linux temp 2.3.48 #1 SMP Wed Mar 29 04:44:43 EST 2000 i686 unknown
> >   2:07pm  up 16 days,  8:13,  4 users,  load average: 0.01, 0.01, 0.00
> >
> > /dev/md0             77497248 61287908  12208368
> > /dev/md1             38620464 13837200  22789536
> > /dev/md2             77497248 54034202  21363046
> 
> It's definitely possible to use 2.2.14 with the Software RAID patch
> and with the Promise Ultra/66 patch at the same time.  I'm doing it
> right now.  Download the plain-vanilla 2.2.14 kernel.  Apply this
> patch first:
> 
> 
>http://www.kernel.org/pub/linux/kernel/people/hedrick/old/ide.2.2.14.20000124.patch.gz
> 
> Then apply the RAID patch that <[EMAIL PROTECTED]> posted here
> earlier, called raid-2.2.14-B1 (I don't have a URL but I can mail you
> what was posted).
> 
> Then configure your kernel properly (email me if you have questions),
> compile it, install it, and it does miraculously work.  Mine detects
> the RAID partition on boot, and mounts it on boot, without having to
> modify init scripts at all.  I'm very impressed.
> 
> I promise you that 2.2.14 + Promise Ultra/66 + RAID works (in that
> order)!
> 
> The Promise Ultra/66 card has been a total nightmare, but now that
> it's working, it's the way to build big fast RAID arrays as cheaply as
> possible.  I think it's about half the cost of doing a comparable
> solution with SCSI.  This savings will be worth it if you're building
> a cluster of these machines.
> 
> It's just unfortunate that Promise isn't aggressively supporting
> Linux, and didn't get an Ultra/66 driver into the RedHat 6.2 release.
> 
> e
> 
> --
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