From: "Björn Kirchner" <bkirchner@am-soft.de>
To: Paul Furness <paul.furness@vil.ite.mee.com>, linux-admin@vger.kernel.org
Subject: Re: How fast should my hard disk go?
Date: Thu, 17 Jul 2003 13:42:28 +0200 [thread overview]
Message-ID: <005c01c34c58$7fce37c0$5001a8c0@bkirchner> (raw)
In-Reply-To: 1058440083.10502.47.camel@Zebra.vil.ite.mee.com
Hello Paul,
> I have a 133 speed hard disk connected to a 133 controller. I believe
> that this should mean that I get a maximum transfer rate of 133 MB/sec?
133 MB/sec is the theoretical maximum of the IDE bus. You won't reach
it with one harddisk. I would even say you won't ever reach 133 MB/sec.
> The disk has an 8M cache on it, which is also supposed to make it
> faster. So why am I getting speeds of just under 50MB/sec? Is this
> correct (because the max transfer is only in one direction or
> something), or am I missing an obvious setting?
>
47 MB/sec is a very good value for an IDE hard disk, I think.
The 133 MB/sec of the controller is only to run multiple hard disk on the
same controller without slowing down the harddisk because the controller
isn't capable of the sumarized speed of the connected hard disks.
I don't think you can speed up your harddisk much more.
Bye,
Björn
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prev parent reply other threads:[~2003-07-17 11:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-17 11:08 How fast should my hard disk go? Paul Furness
2003-07-17 11:42 ` Björn Kirchner [this message]
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