Re: Change the Hostname of a Server with Oracle

Hi Raphael,

>> On one of these servers we have to rename we have installed Oracle
with two database instances.
>> So I want to ask here if anybody have experiences in changing the
hostname of a server with Oracle >> installed?

We run a clustered net up of 4 nodes, each with a different hostname. When something bad happens, each 'package' fails over to a different node of the cluster and runs quite happily.

You can see that something has gone wrong by the fact that V$INSTANCE.HOST_NAME is different
now.

I don't think you'll have problems with changing the host name at all. (I've done it before on HPUX 10 and 11.00 and Oracle 8i with no problems.)

I do remember shutting down the databases and listeners etc before changing the hostname though - just in case. It may not have been necessary - but we didn't take chances and we were doing it at the weekend anyway.

>> Is it possible that everything I have to modify are the files
listener.ora, tnsnames.ora and services.ora???

If the tnsnames specifies the host name then you will either have to change it, or leave the old name in DNS. If you remove it from DNS then you will not be able to connect, so change it to the new host name. Ditto if you use Oracle Names.

Cheers,
Norman.

Norman Dunbar.
Contract Oracle DBA.
Rivers House, Leeds.

Internal : 7 28 2051
External : 0113 231 2051

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