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Date:      Mon, 14 May 2007 13:41:29 +0100
From:      Dieter <>
Subject:   Re: Stable many-port SATA controller recommendations 
Message-ID:  <>
In-Reply-To: Your message of "Mon, 14 May 2007 20:23:28 +0200." <> 

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> > If I use up a slot, I'd like at least 4 ports and NCQ.
> > If FreeBSD doesn't have NCQ support yet I might just get a
> > USB or FW to SATA adapter or two and wait for NCQ.
> NCQ is nice but I don't *really* care. I just want something that works
> at all :) Of course I would want NCQ if it was a performance critical
> production system though. And AFAIK NCQ is not yet supported in FreeBSD.

Problem is that to avoid scrambled filesystems you have to put the disk's
cache in write-through mode, and write performance drops 90%.  NCQ should
fix that.

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