From: Ralf-Peter Rohbeck <rohbeck@yahoo.com>
To: linux-btrfs@vger.kernel.org
Subject: Re: Single disk parrallelization
Date: Fri, 19 Sep 2014 14:29:56 -0700 [thread overview]
Message-ID: <lvi78k$haj$1@ger.gmane.org> (raw)
In-Reply-To: <BLU406-EAS1974279D81BF03735D65B479AB40@phx.gbl>
On 09/19/2014 11:10 AM, Jeb Thomson wrote:
> With the advanced features of btrfs, it would be an additional simple task to make different platters run in parallel.
>
> In this case, say a disk has three platters, and so three seek heads as well. If we can identify that much, and what offsets they are at, it then becomes a trivial matter to place the reads and writes to different platters at the same time.
>
> In affect, this means each platter should be operating as a single virtualized unit, instead of one single unit...
>
> Regards,
> --
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A disk drive has only one actuator that moves all heads in parallel.
Also disk drives are an array of logical blocks today; nobody uses
cylinder/head/sector addressing any more.
next prev parent reply other threads:[~2014-09-19 22:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-19 18:10 Single disk parrallelization Jeb Thomson
2014-09-19 18:47 ` Austin S Hemmelgarn
2014-09-19 21:29 ` Ralf-Peter Rohbeck [this message]
2014-09-24 21:09 ` Calvin Walton
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