Re: Create Big size dummy File..

Tech-Archive recommends: Fix windows errors by optimizing your registry

From: Bob Butler (tiredofit_at_nospam.com)
Date: 06/22/04 

Date: Tue, 22 Jun 2004 08:03:06 -0700

"Duane Bozarth" <dp_bozarth@swko.dot.net> wrote in message
news:40D844E3.327682D4@swko.dot.net
> Bob Butler wrote:
>>
>> "J French" <erewhon@nowhere.com> wrote in message
>> news:40d7d371.87498815@news.btclick.com
>> <cut>
>>> The stuff before is whatever garbage was on the disk.
>>
>> The stuff before should all be nulls
>
> Why--what makes you think/say that? If it were to write all nulls (or
> anything, for that matter) it would take the full time to write to
> disk rather than simply creating the links and whatever data (if any)
> in the actual i/o list.

I didn't say it wrote anything... it should be a very sparse file and
attempts to read anything in the unwritten area would not actually read
anything off disk; a block of nulls would be returned. Nothing gets written
until you fill in data and at that point the nulls would be written as
blocks are allocated.

It may be that Win9x or some other version of the OS is not doing it that
way; if so I'm surprised because it's a major security hole if y9ou are
getting data that was written before. 

-- 
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