SIS already has a "database" that's available to be used. It is
currently only used by SystemInstaller, but it is available for other
components to use as well. SIn already puts a lot of the client and
image info in there. Take a look at the .pm files under the .../lib/SIS
tree under SystemInstaller.

Mike

On Tue, 2004-01-27 at 19:52, Brian Elliott Finley wrote:
> I'd soon like to modify the "mkdhcpserver" tool to deal with multiple
> subnets.
> 
> We could try and stick with the current question/answer bit, or we
> could use some other method.  One idea is to tie the source information
> into a stateful config database.  
> 
> Which leads into a discussion we said we should have a long time ago,
> about something like ODA, maybe even ODA, that SystemImager could use to
> track all it's info, as well as SystemInstaller.
> 
> 
> Thus spake Bernard Li ([EMAIL PROTECTED]):
> > Yeah right now I have to modify the dhcpd.conf to accomodate having 
> > nodes across subnets, but hopefully this can be changed so that I can 
> > manage this in ease later on.
> >
> > Another note about SIS is I think we really need to do something about 
> > the kernel like real soon - I've noticed that the kernel provided by 
> > Frank Crawford which I used to setup my Opterons does not have the SCSI 
> > drivers for my IBM servers, therefore I had to keep 2 copies of the 
> > files which is somewhat inconvenient...
> > 
> > Thanks,
> > 
> > Bernard
> > 
> > Jeremy Enos wrote:
> > 
> > >Ahhhh...  I see.  This is a limitation of SIS that I hadn't actually 
> > >considered.  As we grow to larger clusters, we'll start seeing this a 
> > >LOT more if it's not fixed.  It's good that you're pointing it out right 
> > >now.  We're about to embark on the creation of a new "SIS config 
> > >updater" tool, which we need to re-write for some efficiency reasons.  
> > >It will certainly need to be capable of configuring dhcpd.conf to 
> > >support multiple subnets.  I'm cc'ing oscar-devel so folks can see 
> > >this... maybe the SIS crew will have a comment?
> > >
> > >        Jeremy
> > >
> > >
> > >At 05:24 PM 1/20/2004, Bernard Li wrote:
> > >
> > >>Hey Jeremy:
> > >>
> > >>I am trying to do this using one interface, but the only problem is I 
> > >>need to specify multiple subnet blocks in dhcpd.conf inorder for DHCP 
> > >>to work.
> > >>
> > >>Is there a way to specify multiple subnet blocks in dhcpd.conf via 
> > >>Oscar?  Because right now it seems that I have to manually 'fix' it 
> > >>each time...
> > >>
> > >>Thanks!
> > >>
> > >>Bernard
> > >>
> > >>Jeremy Enos wrote:
> > >>
> > >>>You won't be able to do that very easily through two different 
> > >>>interfaces, if that's what you're asking.  If you're just talking 
> > >>>about addressing different subnets through the same interface, that 
> > >>>shouldn't be any problem.  Just define the ranges of IP's as you see 
> > >>>fit.
> > >>>However, DHCP functionality will completely depend on if your 
> > >>>switches are configured to pass the DHCP broadcasts along or not.
> > >>>        Jeremy
> > >>>At 02:37 PM 1/20/2004, Bernard Li wrote:
> > >>>
> > >>>>Hey Jeremy:
> > >>>>
> > >>>>Just wondering if you know how to set up Oscar across subnets - is 
> > >>>>there a way to automatically set up different subnet blocks in dhcpd?
> > >>>>
> > >>>>Thanks a lot,
> > >>>>
> > >>>>Bernard
> > >>
> > >>
> > >>
> > >
> > >
> > >
> > >-------------------------------------------------------
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> > 
> > 
> > 
> > 
> > -------------------------------------------------------
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> > 
-- 
Michael Chase-Salerno           [EMAIL PROTECTED]
IBM Linux Technology Center     Poughkeepsie, NY 
Advanced Linux Response Team    http://www.ibm.com/linux



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