Axp-List Archive
Re: Lockups during heavy disk I/O?

Subject: Re: Lockups during heavy disk I/O?
From: W Bauske (wsb@paralleldata.com)
Date: Wed Jul 19 14:56:26 2000


Robb Romans wrote:
>
> On Fri, 14 Jul 2000, W Bauske wrote:
>
> > Paul Allen wrote:
> >
> <snip>
> > I keep Linux on it's own disk, not where I store data. I give
> > Linux a token drive of a few GB and then put very large UATA66
> > drives on Promise cards. Just assembled an XP1000 with 4 60GB
> > Maxtor drives. As to your problem, I'd bet you're using the same
> > disk for OS and data. Add a separate data disk and I'll bet
> > it works fine. Heck, you can buy a 60GB Maxtor for $240 and
> > a promise card for $30 and have massive data storage for $270...
> >
> > SCSI isn't even close for $$/MB. You could buy 3 60GB Maxtors
> > for the price of a 50GB SCSI drive.
> >
> > You will need the E-IDE DMA patches to make it hum. Contact me
> > if you decide to try it and I can tell you what to watch out
> > for.
>
> On a related note, is there any success with Promise Ultra-66 cards with
> PC164/SRM? Last I tried, srm didn't see the card, hence it wasn't
> initialized correctly. Linux with the ide patches could see neither the
> drive nor the controller attached.
>

Whether SRM sees it isn't important. My UP2K's and
XP1000 SRM's don't see the cards but work OK. Only
oddity I've seen is a warm reboot hangs. You have to
power down and then back up to not hang on the drive
identification. That and only one drive per channel.

Note you have to select Promise support when you build
your kernel to see the card. Otherwise, it's as you
describe and is not seen by the kernel.

Wes

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