RE: kernel: aacraid: Host adapter reset request. SCSI hang ? ( An dy De Petter)

Vincent, 

Disable "HyperThreading" (aka Logical Processor) in System Setup/BIOS.  See
if that resolves your issue with the: aacraid: Host adapter reset request.
SCSI hang errors.

Let us know...

Regards,

Jeremy Sheard
DELL Server Support

-----Original Message-----
From: Vincent Blondel [mailto:vincent_blondel-/[email protected]]
Sent: Tuesday, June 17, 2003 3:58 AM
To: [email protected]
Cc: Andy De Petter; Adam Newby; [email protected]
Subject: Re: kernel: aacraid: Host adapter reset request. SCSI hang ? (
Andy De Petter)


I don't think it is a 
- firmware backplane 
- intel xeon processors 
- or segate problem ...

I have following machine 

- TYAN s2468GN motherboard
- 2 AMD Athlon MP 1800+ processors
- 2 x 512MB DDR266 PC2100 Kingston memory modules
- Adaptec 5400s SCSI RAID controller
- 4 SEAGATE ST318453LC disks in RAID-5 config
- SAMCHEER backplane  
  SC-R34A ( http://www.samcheer.com )

and I also have this problem. The only difference is I
don't get this problem after hours ( days ) but after
minutes. For example I just have to launch a kernel
compilation , and after 2 or 3 minutes, I get this
error message.

I received, weeks ago an answer from Alan Cox saying
me it is a hardware problem , but it cannot because I
also installed w2k ( as I said it in an earlier mail )
and I don't have any problems. I copied hundreds of
mgo's data and os stay alive.

I also corresponded with Adaptec asking if an harware
incompatibility is know with Adaptec RAID Controllers
and last models of SEAGATE hard drives and it is not
at the moment.

I read days ago in this list and concerning this
problem a mail saying Alan is corresponding with
Adaptec about this problem so I also sended this mail
to alan. Maybe, we will receive a clear status from
from him about our problem ???

Thanks to all and to Alan for searching about this
problem.
vincent.

--- Andy De Petter <[email protected]> wrote:
> Adam Newby wrote:
> 
> >>I am having the same bus hang errors, on 4 2650
> with dual 2Ghz Xeon
> >>processors.  I am using Debian 2.4 kernel. 
> Apparantly, it also has
> >>something to do with the clockspeed of the
> processors.  I am having the
> >>SCSI problems on all my 2Ghz processors, but not a
> problem -at all- on
> >>2.4Ghz processors.
> >>    
> >>
> >
> >FYI, our machines are 2.4GHz Xeons, so I don't
> think processor speed is
> >necessarily a factor. Interesting to see that quite
> a few people are
> >having this problem, though.
> >
> >  
> >
> >>I am using:
> >>
> >>/	PowerEdge 2650 BIOS at 1.10 A10
> >>	//Backplane firmware at 1.01
> >>//	PERC3/Di BIOS at V2.7-1 (build 3170)
> >>    
> >>
> >
> >This are the same as us, and are the latest
> versions AFAIK.
> >
> >  
> >
> >>Anyone has come up with any solutions and/or
> explications on this behaviour yet? ;)
> >>    
> >>
> >
> >I *thought* we had, in that we thought it was a
> combination of faulty
> >disks + faulty firmware. Given your information,
> this seems not to be
> >correct now.
> >
> >
> >  
> >
> Update: I noticed that in the server with 2.4Ghz
> processors, there are 
> Seagate disks, and in the servers with 2.0Ghz
> processors, there are 
> Maxtor disks.  Does anyone, who has this aacraid
> problem, have Maxtor 
> disks in his server?  Or Seagate aswell?  My current
> situation: 2x2.4Ghz 
> 2650 server, with Seagate disk works like a charm,
> while 2x2.0Ghz 2650 
> server, with Maxtor disks is unusable in production.
> ;-/
> 
> -Andy
> 
> -- 
> Andy De Petter - Expert  IT Analyst -
> [email protected]
> Belgacom ANS/EIS/ISA - Carlistraat  2 - 1140
> Brussels (Belgium)
> Head office: Koning Albert II Laan 27 - 1030
> Brussels (Belgium)
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