[Cialug] Big Disks

[Matt Breitbach]

The density is the same (MB/CM squared) but you get better transfer rates
because it is passing under the read/write heads faster linearly.

The angular velocity is constant no matter where at on the drive you are at.

The cylinder might contain the same amount of data (not sure) but if it
does, it would just be "thinner" on the outside of the disk since it is
spread out over a larger linear distance.

-----Original Message-----
From: cialug-bounces at cialug.org [mailto:cialug-bounces at cialug.org] On Behalf
Of Tom Pohl
Sent: Sunday, January 10, 2010 11:00 PM
To: Central Iowa Linux Users Group
Subject: Re: [Cialug] Big Disks

I also thought that the density of the outside of the platter was less dense
because the angular velocity was greater and each cylinder contained the
same amount of data.

-Tom

On Jan 10, 2010, at 9:59 PM, Matt Breitbach wrote:

> I thought it was the other way around - I thought the outside of the
platter
> was used first.
> 
> -Matt
> 
> -----------Quote ----------------
> 
> 
> Lower numbered cylinder heads is the inside of the disk, higher outside.
>   It is however very likely your lower partitions are on the inside of
> the disk, just have a look at the partition layout in fdisk.
> 
> - --
> Nick Fox
> 
> Fox Media Systems, LLC
> Owner / President
> 1338 57th St.
> Des Moines, IA 50311
> www.foxmediasystems.com
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