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Date:      Tue, 9 Jan 2001 17:46:24 +0000
From:      Jonathan Perkin <sketchy@netcraft.com>
To:        Matthew Jacob <mjacob@feral.com>
Cc:        freebsd-scsi@freebsd.org
Subject:   Re: Aborted commands and parity errors
Message-ID:  <20010109174624.G2152@netcraft.com>
In-Reply-To: <Pine.LNX.4.21.0101090931490.27687-100000@zeppo.feral.com>; from mjacob@feral.com on Tue, Jan 09, 2001 at 09:35:18am -0800
References:  <20010109113131.B1688@netcraft.com> <Pine.LNX.4.21.0101090931490.27687-100000@zeppo.feral.com>

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On Tue, Jan 09, 2001 at 09:35:18am -0800, Matthew Jacob wrote:

> It's either a bad cable or something that is corrupting data. Be thankful
> parity caught it.
> 
> When was the last time you power cycled things? Sometimes a resetting
> termpwr fuse gets frotzed and termpwr stops being supplied by the drive
> that's supplying it, thus nullifying termination.

 5:42PM  up 53 days,  1:39, 3 users, load averages: 0.18, 0.48, 0.93

> It's also true, tho rare, that traces just sometimes go on drive or PC
> motherboards. Does your system and/or drives run hot?

Justin's earlier suggestions fit quite close - the room has been quite
hot recently, so I put a fan in there, which is balanced on top of this
very SCSI enclosure :)

It does vibrate quite a bit, so I guess it could have shaken the cable
slightly loose or something.

> Try a powercycle. Let it cool down. Then boot up again and see. It always
> could be s/w but in this case I doubt it.

Yes, I intend to.

Many thanks.
-- 
  Jonathan Perkin  <sketchy@netcraft.com>  +44 (0)1225 867914
 Netcraft Ltd, Bradford on Avon, UK - http://www.netcraft.com/


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