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From: Jeff Garzik <jgarzik@pobox.com>
To: dougg@torque.net
Cc: Mirko Benz <mirko.benz@web.de>, linux-scsi@vger.kernel.org
Subject: Re: SATA on mptsas performance
Date: Wed, 01 Mar 2006 01:09:18 -0500	[thread overview]
Message-ID: <44053A8E.6000206@pobox.com> (raw)
In-Reply-To: <44051548.9090408@torque.net>

Douglas Gilbert wrote:
> If the SATA disk does 3 Gb/sec then yes but SATA-1 disks
> run at 1.5 Gb/sec (and don't have NCQ). When a SAS HBA

To further confuse things, "SATA-1", "SATA-2", etc. don't mean much at 
all.  I recommend never using these terms.

There are many disks that can do NCQ but not 3 Gb/sec, for example.

Its best just to mention the existence of features, because there is no 
__technical__ definition of "SATA 2" that one can test in software. 
SATA 2 is just a set of features defined by marketing.

	Jeff


  reply	other threads:[~2006-03-01  6:09 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-14 16:02 SATA on mptsas performance Moore, Eric
2006-02-15  7:52 ` Mirko Benz
2006-03-01  3:30   ` Douglas Gilbert
2006-03-01  6:09     ` Jeff Garzik [this message]
2006-03-01  8:16       ` Mirko Benz
2006-03-01 17:55     ` Asgeir Eiriksson
  -- strict thread matches above, loose matches on Subject: below --
2006-03-01 16:04 Moore, Eric
2006-02-13 14:01 Mirko Benz

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