Re: How does one manually corrupt a database (database file, redo logs and backups)

have you tried with an hex editor?

On 9/2/06, Charles Schultz <sacrophyte@xxxxxxxxx> wrote: 

That does not help much. If it is undocumented and you do not tell me how
to use it, I am kinda stuck at square one, nu? =)


On 9/2/06, LS Cheng < exriscer@xxxxxxxxx> wrote:
>
>  hi
>
> you can use bbed, its an undocumentated executable though
>
>
>  On 9/2/06, Charles Schultz <sacrophyte@xxxxxxxxx > wrote:
> >
> > Funny topic, eh? I am practicing backup and recovery procedures and
> > finding that recovery is quite easy since I never have corrupted blocks to
> > worry about. So, how do I practice for a "worse case" scenarios? Are there
> > white papers out there that go over this kind of stuff? I found several
> > "Best Practices" in metalink (look Mladen, not plural), but that is not
> > exactly what I am looking for as they tell you how to fix the problem, not
> > make the problem. I have tried overwriting the binary files, but being
> > simpled-minded I was using vi. I thought about using the unix dd utility -
> > unfortuantely I do not have enough experience to be surgical (easy to mess
> > up the first few blocks, but what about the middle?). Can I use the same
> > method to isolate corruption to various parts of the database (ie, database
> > files, redo logs or rman backups)?
> >
> > I have a gut feeling that someone has already documented this, so if
> > this is the case, please point me there.
> > Thanks,
> >
> > PS - I have been practicing on 9iR2. Yet anything above 9iR1 would be
> > fine.
> >
> > --
> >
> > Charles Schultz
> >
>
>


--

Charles Schultz

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