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Hidden Gigabites, WHERE ARE YOU?

Avatar Eric Jervis
Preparatory to wiping my big hard drive, I called up Disk Utility, and found a mystery.
When I first received the computer the drive was unplugged. Whilst plugging it in I found to my surprise that although I had bought the machine supposedly fitted with a 120 GB hard drive, the drive itself was 180 GB. This is confirmed when I highlight the drive and click on File-Get info, which states: Capacity 172.42 GB, Available 107.22 GB, Used 65.19 GB, which is exactly what I would expect i.e. if you subtract Available from Capacity the result is Used.
there appears to me to be an anomaly though; further down it says: Created 22 April 08, Last opened 16 Jan 08. How a thing be opened before it was created? Perhaps these comments refer to different things?
However, back to Disk Utility. Here the figures it tells me do not add up. It alleges; Capacity 127.9 GB, Available 107.2 GB, Used 65.2 GB. Since this cannot be, I would deduce that about 44 GB are somehow invisible.
This is the drive that came with the computer, but it contained an awful lot of apps that will not work with Tiger. They will only work with Leopard, which needs a much faster one. Suspicious?

Re: Hidden Gigabites, WHERE ARE YOU?

Avatar Eric Jervis
The missing gigabites are still invisible, but File/Get info now states that Capacity is 128 gig, and the figures in Disk Utility now make sense; so I've decided not to care. Life is too short.

Re: Hidden Gigabites, WHERE ARE YOU?

Avatar John Surtees
I believe its something to do with the fact that certain Macs can only use up to a given size of hard disk. So that if there is a larger one in place, no matter how big it is, it will only show the maximum that the Mac will handle.

Re: Hidden Gigabites, WHERE ARE YOU?

Avatar Eric Jervis
Aha! Thanks John, that sounds eminently reasonable; I'd pretty well concluded that the drive had a mechanical fault, but you've reminded me that my old (er) Mac (OS 9) was incapable of using all the memory that it was possible to install. Which does mean, of course, that I've partitioned the wrong drive. Never mind, san ferry ann!
 
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