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Date:      Tue, 12 May 1998 11:25:57 -0600 (MDT)
From:      "Justin T. Gibbs" <gibbs@narnia.plutotech.com>
To:        fireston@lexmark.com
Cc:        scsi@FreeBSD.ORG
Subject:   Re: SCSI timeouts in dataout mode
Message-ID:  <199805121725.LAA02342@narnia.plutotech.com>
In-Reply-To: <199805121631.AA24888@interlock2.lexmark.com>

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In article <199805121631.AA24888@interlock2.lexmark.com> you wrote:
> We are attempting to get an HP Autoraid device running on a FreeBSD 3.0-
> current box, 31198 snapshot.

Okay.

> The HP unit is attached to the machine via an Adaptec 2944 ( that is no typo -
> it is differential ).  There are currently 6 drives in the HP.  The HP is
> further set up such that there are 8 LUNs defined ( the actual sizes do not
> matter - we have tried many configurations ).  The HP unit has two
> controllers, but the problem appears to be independant of that.
> 
> On boot, all the LUNs are probed and return the correct information - ie
> size.  fsck works ( trust us, we have done that *many* times ).  We
> can mount the drives, we can delete files, move small files around 
> without problem.
> 
> As soon as we try writing large ( > 25 Mb ) sequential files ( via bonnie ), 
> we get this:
> May 12 10:01:28 rocky /kernel: (da3:ahc1:0:0:1): SCB 0x1a - timed out in dataout phase, SCSISIGI == 0xe6


Is this only with multi-lun I/O, or can you make this happen just by
touching one lun?  Does the HP have a status monitor?  If so, what does
it say?

Do you have access to a SCSI bus analyzer?

What does a boot -v tell you about the termination of the card?  Does it
appear to be correct?  Does the behavior change if you use a manual
terimination setting in SCSI-Select?

--
Justin

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