You then change the representation from an external one to an internal
one, which is a significant design decision ... I wrote up about a page
filling out the argument against using a backlink scheme ... then figured
there probably isn't interest, as we're talking a hypothetical feature.  
Let me know if you want me to finish off and send my argument against
backlinks ...

Cheers,
BrettSh [msft]

On Fri, 14 Oct 2005, joe wrote:

> Can you do some sort of backlink type of magic where you use some smaller
> sized value to represent the real value via indirection or something? 
> 
> I expect most companies would be willing to take the hit on DIT size to get
> this kind of capability. ESE can handle it right?
> 
>  
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Brett Shirley
> Sent: Friday, October 14, 2005 11:50 AM
> To: ActiveDir@mail.activedir.org
> Subject: RE: [ActiveDir] Knowing when users were deleted.
> 
> 
> Ignoring the 16 bytes at the beginning of the metadata for version and attr
> count info, and garbage wasted space ... the metadata for a single attribute
> is 48 bytes, adding the SID (28 bytes) would be an expansion of 57% on the
> _raw_ per attribute metadata size.
> 
> A sampling of a corporate DB showed the raw metadata size to be 15% of the
> DIT size, which would lead me to believe the DIT would expand by ~10% for a
> trivial implementation against this paticular corporate DIT.[1]
> 
> However, if you look at the /showobjmeta for _any_ object, you will realize
> that is a data structure that is over ripe (like banannas you wouldn't even
> use for a bananna cake) for being compressed.  I think I could add a SID,
> (custom) compress it, and shrink the DIT in size.
> 
> While you might think a GUID is better, because If you add a GUID, it is
> only 16 bytes, but that's a very uncompressible 16 bytes, "effectively a
> random hash".  The SID is more likely to compress properly.
> 
> [1] I expect that corporate DITs vary what % is meta-data by how many certs
> and big blobs they stick in thier AD.  I imagine most corporate DITs are
> worse (as in higher % is metadata) than the one I checked out.
> 
> Not that I've been thought of it ...
> 
> Cheers,
> -BrettSh [msft]
> 
> This posting is provided "AS IS" with no warranties, and confers no rights.
> 
> 
> On Fri, 14 Oct 2005, Al Mulnick wrote:
> 
> > <raises hand>
> > GUID or SID of the user account that made the delete request.  Last 
> > mod my not be enough in case some process gets hold of that data in 
> > the deleted items, even if unlikely.  I want the id of the identity 
> > that put caused the object to be there in the first place.
> >  
> > Having the data for a full undelete option wouldn't seem too terrible 
> > either, although that might significantly increase the storage in the DIT.
> > In the past I've had to write apps to keep that information out of 
> > band in order to put back items mistakenly removed. But I can't see 
> > why I should have to trip through all the DC's Audit logs to find the 
> > information about who deleted something given how common this type of 
> > question is.  It should be recorded same as the audit log (we have the 
> > information, why not stamp it on the object at time of deletion?)
> >  
> > Al
> >  
> >  
> > 
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of joe
> > Sent: Friday, October 14, 2005 11:03 AM
> > To: ActiveDir@mail.activedir.org
> > Subject: RE: [ActiveDir] Knowing when users were deleted.
> > 
> > 
> > Correct, you can currenlty only get the when and the where (DC Where 
> > not Client Where).
> >  
> > Which raises the question. How many people would like a metadata stamp 
> > with the GUID or SID of the userid that made the modification for a 
> > given attribute (or value if appropriate)? Or would it be ok to just 
> > have who made the last change to the object? Either way, none of the 
> > "administrators group" nonsense, it points to a specific security
> principal.
> >  
> >  
> > 
> >   _____
> > 
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED] On Behalf Of Freddy 
> > HARTONO
> > Sent: Friday, October 14, 2005 3:18 AM
> > To: ActiveDir@mail.activedir.org
> > Subject: RE: [ActiveDir] Knowing when users were deleted.
> > 
> > 
> > Hi Yann,
> >  
> > You can find at the deletedobject folder via adfind -showdel and see 
> > the Last modified date - that would be when the object is deleted.
> > 
> > But as for who deleted - I dont think you can find it without the
> auditing.
> >  
> > 
> > 
> > Thank you and have a splendid day! 
> > 
> > Kind Regards,
> > 
> > Freddy Hartono
> > Group Support Engineer
> > InternationalSOS Pte Ltd
> > mail: [EMAIL PROTECTED]
> > phone: (+65) 6330-9740 - temp
> > 
> >  
> > 
> >   _____
> > 
> > From: Yann [mailto:[EMAIL PROTECTED]
> > Sent: Friday, October 14, 2005 2:57 PM
> > To: ActiveDir@mail.activedir.org
> > Subject: [ActiveDir] Knowing when users were deleted.
> > 
> > 
> > Hi there,
> >  
> > I wonder if there is a way to know when a user has been deleted from 
> > AD other than using security audt, because at the time of the 
> > deletion, i forgot to activate the audit :(
> >  
> > So my boss urge me to find the guilty user AND the time of deletion.
> > I looked for attributes in adsi and found that there is the 
> > whencreated, whenmodified attribute but not whendeletedtimestamp one.
> >  
> > Any idea ?
> > 
> > 
> > 
> >   _____
> > 
> > Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! 
> > Messenger T?l?chargez 
> > <http://us.rd.yahoo.com/messenger/mail_taglines/default/*http://fr.mes
> > senger
> > yahoo.com> le ici ! 
> > 
> > 
> 
> 
> 
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