[LON-CAPA-admin] Server migration

Gerd Kortemeyer korte at lite.msu.edu
Wed Jan 10 15:02:26 EST 2007


On Jan 10, 2007, at 2:48 PM, Gerd Kortemeyer wrote:

> It would be far preferable if the new server would inherit all  
> coordinates of the new one, i.e., it becomes "polya" - doing that  
> will give a seamless transition, the network does not even need to  
> know that the hardware changed.

Which is this step in Guy's procedure:

>>>        - change the IP address and DNS of the new server to be
>>>           polya.informatik.fh-wolfenbuettel.de ->

> The old server should get a new name.

Eventually, after successful transition. While it still has the old  
name and IP, never have both on and/or connected at the same time.

>> From my limited perspective all boils down to what will happen  
>> with the resources published on polya so far.
>> Case 1: Resources published so far are not used by anyone outside  
>> Wolfenbuettel
>> Will it be sufficient
>> o to assign loncapa-domain "fhwf" (the one polya currently has) to  
>> the new server
>> o and to configure polya to be a standalone server with a  
>> different loncapa-domain, after the migration has been  
>> successfully finished?
>> I guess it depends on how /res/fhwf/riegler/... is mapped  
>> internally to the IP-address of the server.
>> Case 2: Resources published so far are used by someone outside  
>> Wolfenbuettel
>> Not sure about that one.

Why not just copy all the stuff from the old box to the new one, no  
matter what?

- Gerd.

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