I do have all of the raid stuff set up as hardware raid. I am using the
latest bios( have it set up for linux).
Unfortunately, I do not (yet) have another machine to test this out on to
see if it is a block device problem. or strictly limited to the compaq.
I should be getting another machine with an adaptec scsi 160 to see if that
behaves better.
Nathan
-----Original Message-----
From: Dr. Michael Weller [mailto:eowmob@exp-math.uni-essen.de]
Sent: Monday, January 29, 2001 11:39 AM
To: Nathan Black
Cc: linux-kernel@vger.kernel.org
Subject: Re: Bolck Device problem or Compaq Smart array 2 problem?
kernel -2.4 .0+
On Mon, 29 Jan 2001, Nathan Black wrote:
>
> Here is my scenario. I have a smart array controller 2. I have 6 logical
> drives( one on it's own physical drive). I am using the one drive for data
> aquisition from an atm board. To locate my problem, I removed all of the
atm
> stuff. and I am trying just a read/write. Both show the same symptoms. I
> have tried many different kernels.
>
> Here are my results.
>
> 2.2.18- works fine. 24 MBytes/sec at 100+ gigabytes (16GB looped many
times
> ( lseek64(FD,SEEK_SET,0) )).
>
> 2.4.0 release SMP and Uniprocessor with NMI on- Kernel oops. I can
reproduce
> if necessary( oops at about 700 MB) sometimes more, sometime less. (In
> BDFLUSH if I recall)
>
> 2.4.0 release UniProcessor NMI off- Works like the 2.2.18
Esp. for SMP problems (that is running on an SMP machine). Proper setup of
the board, the APIC and what else is mandatory.
For the Proliant, you should check the operating system setting with the
compaq setup tool/diagnosis. Definitely first upgrade all firmware to the
latest release... The new releases usually already support the setting:
linux. However, private experience:
DOS/other -- works, but UP only,
linux -- only on new machines, one case known where it
doesn't work.
Windows NT -- known not to work on old machines, but works in
above case where linux doesn't.
Unixware (v7?) -- some SMP unix, works on old machines, again doesn't
work on some new hardware.
So, you might have to try several settings. Even if 2.2.18 works, 2.4's
setup might need other, better hardware initialisation.
If this doesn't help (or you knew about it and just didn't mention it).
I'd more think about hardware/CPU (esp. SMP setup)/memory problems.
I don't see the raid adapter affected here.
If all this doesn't help, you might want to contact Compaq, they are
recently very helpful to resolve such issues.
How do lesser CPU's work?
--Michael Weller: eowmob@exp-math.uni-essen.de, eowmob@ms.exp-math.uni-essen.de, or even mat42b@spi.power.uni-essen.de. If you encounter an eowmob account on any machine in the net, it's very likely it's me. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Jan 31 2001 - 21:00:32 EST