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Date:      Tue, 20 Jan 2009 08:08:29 +0100
From:      Marc "UBM" Bocklet <ubm@u-boot-man.de>
To:        freebsd-stable@freebsd.org
Subject:   Re: problems with sata disks (taskqueue timeout)
Message-ID:  <20090120080829.b4006877.ubm@u-boot-man.de>
In-Reply-To: <49750137.7020105@modulus.org>
References:  <20090119202016.11f42e3b.ubm.freebsd@gmail.com> <49750137.7020105@modulus.org>

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On Tue, 20 Jan 2009 09:39:51 +1100
Andrew Snow <andrew@modulus.org> wrote:

> 
> I think that if you use eSATA you probably need dedicated eSATA 
> controller ports.  eSATA standard specifies a higher voltage for the 
> longer cable distances.
> 
> Judging from the sporadic problem reports, Promise TX4 is probably
> not the best at signal purity to begin with so using it for eSATA
> pushes it over the edge.
> 
> 
> Hope that helps,

Thanks for the fast answer! :-)

Although my version of the TX4 has two dedicated e-sata ports, the
other posts seem to indicate that it got something to do with the
controller (maybe signal purity, like you said). I'll try upgrading
next and will report back after that.

Bye
Marc




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