Re: Promise Fasttrack s150 TX4 raid issues

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On Sun, 2003-08-10 at 20:38, Jim Perrin wrote:
> As of right now I only have sda, and am using the binary drivers from 
> Promise. My problem came about trying to add a label option to the 
> partition, I kept getting duplicate echos that would not allow me to mount 
> via label=/foo but I could mount perfectly using /dev/sda. Thanks for your 
> response. I have not had any experience with the open source drivers yet. 
> Do they yield any performance boost? If you could post a link to or about 
> them I would be grateful. Thanks again

The open source drivers are part of the 2.4.current kernel source.
Alternatively, you could look at
 
http://people.redhat.com/arjanv/pdcraid/

This is the original page of the author of the driver. 
My experience with them is that they give you the option to use a stock
or modified stock (RedHat) kernel, but they do not flush the IDE drives 
buffers on reboot/powerdown. Performance boost is not what I have tried,
I just wanted a plug-and-play supported solution and stopped
investigating into the performance of the drivers once I found out how
to get them running and the fact that they don't flush the cache on my
drives. On a whole, my personal experience is that it is wise to stay
away from the promise cards on dedicated linux machines, but pay a
little extra and go for 3ware. They offer true hardware raid and have
decent opensource drivers in the linux kernel implemented. I run
production on both Promise and 3ware and I must say that I am personally
more satisfied with 3ware.

> --On Sunday, August 10, 2003 19:03:29 +0200 "Homme R. Bitter" 
> <homme@xxxxxxxxxxx> wrote:
> 
> > On Sun, 2003-08-10 at 14:57, Jim Perrin wrote:
> >> I recently purchased the Promise Fasttrack s150 TX4 because it was one
> >> of  the cheaper cards that boasted linux support. I'me becoming a bit
> >> irritated  with it though as it does not list any actual device in
> >> /dev/rd/* that I  can see. Has anyone succesfully set this card up with
> >> raid? I can access  the individual drives using /dev/sda etc, but what
> >> do I use to access the  raid array? Below is output from /proc in case
> >> it's needed.
> >>
> >> Any help would be immensely welcome.
> >
> > You need to define the raid in the bios of the card and build it there.
> > After that you should see the raid as a single scsi drive. This is, if
> > you are using the binary drivers provided by Promise. If you use the
> > Open source drivers you should make devices in the /dev/ataraid
> > subdirectory and your raid should appear as /dev/atatraid/d0p1 etc.
> >
> > For more info see the various howto documents on the web.
> >
> > Regards,
> >
> > Homme
> >
> >
> >
> > _______________________________________________
> > 
> > Ataraid-list@xxxxxxxxxx
> > https://www.redhat.com/mailman/listinfo/ataraid-list
> 
> 
> 
> 
> 
> _______________________________________________
> 
> Ataraid-list@xxxxxxxxxx
> https://www.redhat.com/mailman/listinfo/ataraid-list




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