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Unity 4.2, change windows domain (Workgroup)


Any impact on the Unity/Exchange if I change the Windows domain (workgroup). It's a VM only deployment (no UM).

Cisco Employee

Re: Unity 4.2, change windows domain (Workgroup)

From the Unity Reconfiguration Guide for Unity 4.x with Exchange (without failover)...

To Rename a Cisco Unity Server or Move a Cisco Unity to Another Domain (Without Failover)


Step 1:

Confirm that you have all of the disks necessary to reinstall the version of Cisco Unity currently installed on the Cisco Unity server. When you use DiRT to back up and restore Cisco Unity data, you must restore to the same version of Cisco Unity that you backed up.


Step 6:

If subscriber messages are stored on the Cisco Unity server and you chose not to back them up by using the Disaster Recovery Backup tool, back them up by using Backup Exec or another Exchange-aware backup utility. For more information, refer to the manufacturer documentation.

We recommend that you use an Exchange-aware backup utility. The Disaster Recovery Backup tool backs up messages using the Microsoft Exchange ExMerge utility, and ExMerge does not retain single-instance messaging. (In single-instance messaging, when you send a message to a distribution list, only one copy is saved in the Exchange database, not one copy per recipient.) When you back up using ExMerge, for every message sent to a distribution list, ExMerge saves one copy of that message for every recipient. As a result, the backup of the messages database may be so large that you cannot restore the entire database to the Cisco Unity server.

Step 7:

Reinstall all software on the Cisco Unity server, including the operating system, by following the instructions in the applicable Cisco Unity installation guide for your configuration at

I would say this is a huge impact since it appears to need a total re-install.

Here is the link to the guide with the section regarding moving Unity to another domain.


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