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Posted by Ken Moiarty on 09/29/61 11:42
I'm not sure if I'm failing to understand what you mean or you're
failing to understand what I've meant to say. When my hard drive
(irreparably) crashes (which I must admit does not happen often - but two
times over ten years is a lot when you have a lot of software and data to
reload), it takes me a good week of all my leisure time just to reload my
software and document data, and manually attend to all the myriad loose ends
I have involved (including, for example, having to find all my product keys
and re-activate programs I've purchased for download, etc - which in some
cases requires having to personally phone the original vendors to replace
expired product keys) to return my computer to the way it was prior to the
crash. Ideally, I would have the cash to just buy a several hundred
Gigabyte capacity internal tape drive (featuring on-the-fly hardware
compression) for automatic routine backup. In the event of a hard drive
crash, I've got an exact data image of the lost hard drive saved securely on
magnetic tape, ready to deliver all I need to restore in one simple
automated step. But these babies cost more than my entire PC and its
software combined!
Another, much cheaper, alternative is to use an additional hard drive
to back up to. This is not a bad option (and in fact I intend to get around
to buying an external USB 2.0 hard drive just for this purpose), and it
certainly allows for quicker restoration of lost data. But it is not
anywhere near 100% secure. I happen to carry on my key ring in my pocket a
magnetic "key" which I have to use at my work. It is easy to forget, both,
to bring it with me when I go to work if it isn't kept in my pocket, and to
never just once forget to remove it from my pocket when I'm around
magnetically sensitive equipment. You can see where I'm going with this.
Hard drives are vulnerable to erasure by magnets. They are therefore not an
ideally secure back up medium.
Optical discs, such as CDs and DVDs offer backup security where a backup
hard drive cannot, because they cannot be so easily inadvertently erased.
But the glaring problem with optical discs is that they can hold no more
than a maximum 8.5 Gigabytes per disc (the capacity of a dual-layer DVD+R).
This falls far short of the capacity of my hard drive, which can hold up to
500 Gigabytes. So backing up with DVDs then must involve spanning across
many, many discs; an onerously time consuming process when done manually.
Thus it is simply not practical to routinely backup an entire hard drive's
data image to DVD, unless there can be hardware equipment (such as a DVD
changer, caddie or carousel, etc.) implemented to automatically load discs
in sequence into the write drive. With such automatic disc loading then,
and only then, can routine backup of hard drive image data to DVDs be made a
realistic option.
Ken
<citizwp@gmail.com> wrote in message
news:1142391478.456517.301810@i40g2000cwc.googlegroups.com...
>I don't know clearly enough that why you need a dvd burner for loading
> multiple discs at once.
> a DVD holds 4.7G, you can burn your date to dvd discs one by one.
>
>
>
>
> http://www.photo-to-dvd.com/
>
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