[iyonix-support] Re: USB hard drive

On 22 Nov 2007 in message <4f45cb292bchris@xxxxxxxxxxxx>
          Chris <chris@xxxxxxxxxxxx> wrote:

> Question 2:  My hard-drive supports 'LBA' and, by selecting this in
> DataSafe's formatter, I was able to almost double its capacity from 8
> Gb to 15 Gb.  What is LBA and is there a downside to using it to
> increase a drive's capacity in this way?
> 

Logical Block Addressing is the method used to locate blocks on the
disk. It took over from Cylinder/Head/Sector addressing some years ago.

You have just demonstrated one of the reasons LBA took over - CHS is
only capable of addressing 7.8GB

[simplified answer - see www.wikipedia.org/wiki/Logical_block_addressing
and other places for more detail]

-- 
Steve Bradbury
Senior Structural Engineer
1242 537832
Alan Dick Europe
steve.bradbury@xxxxxxxxxxxx
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