Free Disk Necessary To Retructure A File

[Kenneth Brody]

Quoting Scott Walker (Sat, 26 Jul 2008 18:38:05 -0400):

> John,
>
> So are you saying that if I had 10 million bytes free on my disk drive,
> I could add a field to a file with 400mb as long as the resulting file
> was not more than 10mb larger.
>
> In other words, I don't need free disk space to be anywhere near the
> size of the file I am restructuring.
[...]

Correct.  If you are growing the file, it is done in place, so you only
need enough room for the difference in size.  On the other hand, if you
are shrinking the file, you need enough free space for the resulting
file.

So, going from 400MB to 410MB needs 10MB free space, but going from 400MB
to 390MB needs 390MB.  (This is why you are given the option of not doing
the actual shrink.)  This is because not all systems on which filePro runs
have the ability to truncate a file.

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