Re: Adaptec 2410SA starts doing this: aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS (Modified by Chad Leigh -- Shire.NetLLC)

2004-03-17 Thread Mark Terribile

--- Albert Shih <[EMAIL PROTECTED]> wrote:
>  Le 05/03/2004 à 22:05:25-0700, Scott Long a écrit
> > On Sun, 29 Feb 2004, Chad Leigh -- Shire.Net LLC wrote:

> > > Now the machine, when it tries to check the two aacd volumes on this
> > > controller, [... :]
> > >
> > > aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS

This is an old experience and it may not be relevant, but ...

About four years ago, on FreeBSD 4.2 or 4.3, I saw a similar problem.  The
actual message was a bit different (and I don't recall it exactly), and
sometimes the machine continued to run, sometimes not.

It turned out that, in the 2U box we were designing, we had the SCSI cable
folded and twisted too tightly, and two of the connectors were a few cm.
too close.  (We had either four or six drives in this box.)  We were lucky
enough to be able to get one of the FreeBSD SCSI driver's authors to look
things over, and after a couple of days with the box he decided that there
really was a problem in hardware and taught us about the care and feeding
of SCSI cables.  Part of the solution was shortening a long run of the
cable that forced us to fold it.  (The lab prototype was  built with an
off-the-shelf cable.)

  Mark Terribile


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Re: Adaptec 2410SA starts doing this: aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS (Modified by Chad Leigh -- Shire.NetLLC)

2004-03-17 Thread Albert Shih
 Le 05/03/2004 à 22:05:25-0700, Scott Long a écrit
> On Sun, 29 Feb 2004, Chad Leigh -- Shire.Net LLC wrote:
> >
> > Now the machine, when it tries to check the two aacd volumes on this
> > controller, starts printing out this message below every 20 seconds or
> > so and the disk volumes cannot be used.  Each new IO attempt triggers a
> > new set of these messages.  The hex number after the COMMAND word is
> > different for each new IO request but of course stays the same for
> > repeated messages relating to the same original IO request
> >
> > aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS
> >
> > I have googled on this and similar posts related to 2120S controllers
> > all seemed to have different causes and fixes...
> 
> I thought that 5.2.1 would have fixed all of this.  This isn't good.
> 
> > Any hints or ideas on what is causing this?  I can get into the
> > controller at POST time and it checks out...
> 
> Can you boot the machine at all?  If so, could I feed you some patches to
> help diagnose the problem?
> 

Long time ago (humm 3 mounths ;-)) ) I've same problem with a Adaptec 2120S
on FreeBSD 5.2

The reconstruction don't work and sometime the machin hang up with same
kind of message.

I solve the problem (after many time) by to remove the SCSI terminator on
the array (where I put the hot-plug disk).

Hope this help.

Regards.


--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
Heure local/Local time:
Wed Mar 17 10:29:24 CET 2004
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Re: Adaptec 2410SA starts doing this: aac0: COMMAND 0xc551a7e8 TIMEOUT AFTER 147 SECONDS (Modified by Chad Leigh -- Shire.NetLLC)

2004-03-05 Thread Chad Leigh -- Shire.Net LLC
On Mar 5, 2004, at 10:05 PM, Scott Long wrote:

On Sun, 29 Feb 2004, Chad Leigh -- Shire.Net LLC wrote:
I originally sent this to -questions, but got no response.  I hope 
this
is a good place to send this.  While the drives and controller are
SATA, the driver is the SCSI aac driver for the adaptec raid, hence
this group.  I would appreciate any attempts to help me understand 
what
is going on.  I have flashed the latest BIOS and Firmware into the 
card
and upgraded FBSD to 5.2.1-RELEASE and it still has this problem
suddenly.  Rebooting, etc have no effect.
I would appreciate being directly cc: ed on any replies, as I am
subscribed to -questions but not -scsi
thanks
I rarely read the freebsd-questions@ list, but you are welcome to 
email me
directly with aac driver questions.  See below:

I am responding directly to Scott on this and will post the final 
results for the archives

Thanks
Chad
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