Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 12 Feb 2004 05:34:06 +0100
From:      Matthias Andree <ma@dt.e-technik.uni-dortmund.de>
To:        Scott Long <scottl@freebsd.org>
Cc:        Matthias Andree <ma@dt.e-technik.uni-dortmund.de>
Subject:   Re: AIC7XXX (2940UW Pro) file system corruption
Message-ID:  <m3vfmcor0h.fsf@merlin.emma.line.org>
In-Reply-To: <402AF528.8020109@freebsd.org> (Scott Long's message of "Wed, 11 Feb 2004 20:38:16 -0700")
References:  <m3smhhj02k.fsf@merlin.emma.line.org> <402AF528.8020109@freebsd.org>

next in thread | previous in thread | raw e-mail | index | archive | help
Scott Long <scottl@freebsd.org> writes:

> The amd(4) driver doesn't do tagged queueing, so it certainly will not
> work the disk as hard as the ahc driver will.

Well, it does some sort of tagged command, but I haven't looked closer
if that's tagged command queueing. The Linux tmscsim driver which is
somewhat related (it also came from Tekram) supports TCQ.

> I don't know much about the sym(4) driver, but it might not work the
> disk as hard either.

It supports TCQ and handles some of the protocol on the chip, and SRAM
is widespread on sym(4) controllers (and not found on ahc(4) stuff
often)...

> While the disk platters might not be going bad, the electronics might be
> aging and getting more sensitive to the heat.  Make sure that the disk
> is well vented and cooled for now, and look into replacing it soon.

I'll look after that.

-- 
Matthias Andree

Encrypt your mail: my GnuPG key ID is 0x052E7D95



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?m3vfmcor0h.fsf>