08-25-2006 07:59 AM - edited 03-13-2019 02:45 PM
We are beginning to plan our CCM 4 to 5 migration and for linux based servers need to follow a different naming standard than windows.
How do we go about changing the CCM 4 server names either before, during or after the migration process.
08-28-2006 12:54 PM
Hi -
The 5.0(4) upgrade guide, which upgrades a CallManager 4.X system, does not allow you to change the host name after the Linux OS install - http://www.cisco.com/en/US/customer/products/sw/voicesw/ps556/prod_installation_guide09186a00806c3cc3.html#wp46919
It assumes a running cluster and uses the information from your backed up system prior to the upgrade. I checked on Cisco's site and only found a couple of old references, that may still apply, that indicate you cannot change the CallManager server name without a rebuild - http://www.ciscotaccc.com/kaidara-advisor/voice/showcase?case=K12982991 and this one - http://www.cisco.com/en/US/customer/products/sw/voicesw/ps556/prod_troubleshooting_guide_chapter09186a00801eb003.html#wp1105170
If no one else updates your forum entry, I would check with TAC on this.
Ginger
09-22-2006 11:40 AM
The TAC has told me that you have to use the same exact hostname and IP address when upgrading from 4.X to 5.X because CM is very dependent on DNS. You would think that someone could have writen a script in the installation that would go through and change all the references in the old database to what the user wanted in the new database. I was trying to bring up my 4.X database on a test 5.X server before attempting the upgrade on my production server. There is no way I'm going to do the upgrade on a production server without testing everything. Unfortunately, Cisco makes this extremely difficult to do. I have two option. Either bring down my current publisher so I can steal the IP address and hostname or set up a seperate network that has the same IP range. Seems a little ridiculous.
You could always upgrade to a new server with a different IP address in the past with CM 4.X and earlier as long as the hostname matched. I don't understand why they chose to change this in 5.X.
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