[CentOS] Formatting a large disk

Ross S. W. Walker rwalker at medallion.com
Mon Sep 24 14:01:59 UTC 2007

Rajeev R Veedu wrote:
> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf
> Of John R Pierce
> Sent: Monday, September 24, 2007 1:16 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] Formatting a large disk
> William L. Maltby wrote:
> > IIRC, sector size is controlled at the hardware level(used to be set
> > with jumpers and/or low-level format programs?). I seem to 
> recall that
> > new drives don't really have "sectors" anymore, but have supporting
> > circuits/(EE)proms that emulate that?
> >   
> >no, sectors are still 512 bytes (plus ECC and header info) on the 
> >physical disk.  its the 'heads' and 'cylinders' that are 
> abstracted.  
> >there's still heads and cylinders, its just that different 
> zones of the 
> >disk have differing sector/track counts.
> I got a Gparted live CD and tried to create a partition for 
> 3tb but still
> the maximum size of partition I could create is 0.75gb. it 
> shows 2.0tb space
> as unused but If I add another partition it doesn't take(it 
> says no empty
> cylinders). The version I am tiring to install is centos5.

For a volume that large you should really use LVM.


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