Changing IP address of Clustered Mailbox Server 2007 in CCR configuration across two different VLAN ?

Hi All,

I need your assistance in reconfiguring my Exchange Server 2007 SP3 Mailbox CCR Cluster for the migration project from one DC to another DC with different IP address VLAN and class.

Existing Mailbox CCR servers:
PRODMBX1.domain.com – Mailbox Production Active Node 1
IP: 10.1.7.5
AD Site: HQ-CapitalCity-Site-1

DRMBX1.domain.com – Mailbox Recovery Passive Node 1
IP: 10.1.12.5
AD Site: DR-RegionalCity-Site-1
CCR Replication flows from PRODMBX1 into DRMBX1, during the upgrade I will failover the mailbox Server into the DRMBX1 to minimize the downtime for the company mail flow.

When the Existing PRODMBX1 is still in passive node, I am changing the IP address only in the Windows Network Adapter properties and then reboot the server.

After the migration Mailbox CCR servers:
PRODMBX1.domain.com – Mailbox Production Active Node 1
IP: 10.18.89.115
AD Site: HQ-CapitalCity-Site-1

DRMBX1.domain.com – Mailbox Recovery Passive Node 1
IP: 10.1.12.5
AD Site: DR-RegionalCity-Site-1
Are there any steps that I need to do to ensure that the changes is replicated back from DRMBX1 into PRODMBX1 once the IP address has changed?

As soon as the replication has finished, the CCR replication should flows from PRODMBX1 into DRMBX1 as normal.
LVL 8
Senior IT System EngineerIT ProfessionalAsked:
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Jamie McKillopConnect With a Mentor IT ManagerCommented:
If you are changing the virtual IP you will need an outage. You need to stop the cluster service on both nodes before you can change the IP.

JJ
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Jamie McKillopConnect With a Mentor IT ManagerCommented:
Hello,

The following link provides the steps you need to follow to change IP addresses on a CCR cluster.

http://andersonpatricio.ca/changing-the-ip-address-on-a-exchange-server-2007-ccr-cluster-windows-server-2003/

-JJ
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Thanks for the reply JJ,
Does in this case how to make sure that after the IP address changes, the email was synch back from DR to production safely ?

Does it uses its own replication link ?
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Jamie McKillopIT ManagerCommented:
If you follow the linked instructions, the database replication will resume and the database copies will sync back up.

JJ
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Hi JJ,

I was wondering if the steps above involve whole cluster mailbox server resource to go offline ?
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Jamie McKillopConnect With a Mentor IT ManagerCommented:
Yes, you will need an outage window to perform these steps.

-JJ
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Hm.. why is that ?
I just need to change the passive node IP address does that still needs me to turn off the Cluster.exe server service which cause outage for both mailbox server nodes active and passive ?
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Jamie McKillopIT ManagerCommented:
Are you going to change the cluster IP? If you change the IP of the cluster, you will need downtime.

-JJ
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Yes the exchange cluster mailbox virtual IP and the Production node only, the DR node is stay the same and will be used as failover when the Production is reconfigured with new IP.

Hopefully no email outage is needed here. Is that possible ?
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Ah ok, but sure it is possible without destroying the CCR cluster or destroy the MSCS cluster ?

I'm bit worried about this since I do not have test lab to try it first.
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Jamie McKillopConnect With a Mentor IT ManagerCommented:
If you follow the instructions I posted, you shouldn't have any trouble.

-JJ
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Senior IT System EngineerIT ProfessionalAuthor Commented:
Thanks !
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