Windows Vista reserves 15% of your hard drive(s) for shadow copies, by
default.
You can change this with the "vssadmin" command. If you have problems with
the syntax, yell for help.
"DevilsPGD" <spam_narf_spam[ at ]crazyhat.net> wrote in message
news:4uad931i9cfrqdfoknu8qca3uoeh80bep9[ at ]4ax.com...
[Quoted Text] > I've noticed what appears to be an interesting quirk with shadow copies.
> It looks like Vista bases shadow copies on a "maximum space" rather then
> on a guaranteed minimum available space basis.
>
> While reasonable on the surface, there is one problem with this
> implementation. If you create a file larger then your shadow copy's
> maximum size, delete it, then recreate the file (potentially a few
> times), the effective result is that all shadow copies are lost even
> though there may be enough space for the cumulative changes to be stored
> on the volume in question.
>
> Is my interpretation of this situation correct? If so, is there any way
> to change how Vista acts? I would be quite happy for Vista to simply
> guarantee me a minimum of 10GB of available space on each logical
> partition, deleting shadow copies as needed when approaching the limit,
> rather them limiting shadow copies to a fixed total amount of space.
>
> I have run into this situation in the real world when working with 4.7GB
> file sets which were compressed and split into smaller parts for
> transmission. Despite having a 400GB drive, with over 100GB free at all
> times, I ended up with no shadow copies / restore points when I ended up
> needing to recover an unrelated file (luckily my file servers all
> generate shadow copies too, so I was able to recover the file)
>
> --
> If quitters never win, and winners never quit,
> what fool came up with, "Quit while you're ahead"?
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