Date: Mon, 24 Aug 1998 13:54:43 -0500 From: Doug Ledford <dledford@dialnet.net> To: Brian Ristuccia <brianr@osiris.ml.org> Cc: AIC7770 List <aic7xxx@FreeBSD.ORG> Subject: Re: Micropolis 3387NS and Tagged Queueing Message-ID: <35E1B6F3.C48423B1@dialnet.net> References: <Pine.LNX.4.02.9808240050030.2330-100000@osiris.ml.org>
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Brian Ristuccia wrote:
>
> Does anyone know the maximum safe queue depth for this drive and my
> aic7xxx controller?
>
> It looks like tagged queueing is currently disabled. Any idea what the
> performance penalty is for this?
I've heard of data corruption problems with some Micropolis drives and
tagged queueing. To be on the safe side, I would simply leave it disabled
on Micropolis drives. The performance hit you take from this varies from
drive to drive depending on the quality of the drives firmware.
--
Doug Ledford <dledford@dialnet.net>
Opinions expressed are my own, but
they should be everybody's.
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