Reconfiguration and Upgrade Guide for Cisco Unity Release 5.x (With Microsoft Exchange)
Adding or Replacing an Exchange Server on Which Cisco Unity Subscriber Mailboxes Are Homed
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Adding or Replacing an Exchange Server on Which Cisco Unity Subscriber Mailboxes Are Homed

Table Of Contents

Adding or Replacing an Exchange Server on Which Cisco Unity Subscriber Mailboxes Are Homed

Adding an Exchange Server

Replacing an Exchange Server


Adding or Replacing an Exchange Server on Which Cisco Unity Subscriber Mailboxes Are Homed


This chapter contains the following sections:

Adding an Exchange Server

Replacing an Exchange Server

Adding an Exchange Server

If you want to add another Exchange server on which mailboxes for Cisco Unity subscribers will be homed, follow Microsoft procedures for replacing or adding the server. Then download and run the Cisco Unity Permissions wizard to grant the Cisco Unity message store services account the required permissions to the new mailstore(s). Do the following two procedures.


Caution When the Permissions wizard completes, the Lsass.exe process updates the Active Directory database with the new permissions. While Lsass.exe is processing the updates, it uses 100% of available processor time on the root domain controller in the domain and on one of the global catalog servers in the site where the Permissions wizard was run. (Other domain controllers in the domain and other global catalog servers in the forest are also affected, but the impact is less significant.) The updates take a few minutes to several hours, depending on the size of the database. Do not continue with changing the partner server until Lsass.exe has finished processing the changes, or the process may fail.

To Download the Latest Cisco Unity Permissions Wizard


Step 1 Download the latest version of the Cisco Unity Permissions wizard for Cisco Unity 5.0(1) and later, available at http://ciscounitytools.com/App_PW_501.htm.


To Run the Cisco Unity Permissions Wizard


Step 1 On the Cisco Unity server, install the latest version of the Cisco Unity Permissions wizard, if it is not already installed.

Step 2 Log on to the Cisco Unity server by using an account that meets the following criteria:

Is a member of the Domain Admins group in the domain in which the Cisco Unity server is installed.

Is either an Exchange Full Administrator or a member of the Domain Admins group in the domain in which Exchange mailboxes for Cisco Unity subscribers are homed. (If Exchange mailboxes are homed in multiple domains, the account that you log on with must be either an Exchange Full Administrator or a member of the Domain Admins group in a domain that contains all of the domains in which mailboxes are homed.)


Caution If you try to run the Permissions wizard by using an account that has less than the default permissions for a Domain Admin, the wizard may not be able to set all of the permissions required by the installation account and the service accounts. If the Permissions wizard cannot set all of the required permissions, Cisco Unity will not run properly.

Step 3 Run the Permissions wizard from the directory in which you installed it in Step 1. For more information, refer to Permissions wizard Help.


Caution Remember to specify the mailstore(s) on the new server so Cisco Unity has the necessary permissions to access the mailstores. Otherwise, Cisco Unity subscribers whose Exchange mailboxes are homed on the server will not be able to send or receive voice messages.

Step 4 Restart the Cisco Unity server.


Replacing an Exchange Server

If you want to replace an Exchange server on which mailboxes for Cisco Unity subscribers are homed, follow Microsoft procedures for replacing the server.

Before you remove the old Exchange server from the environment, do the following:

1. If the server you are replacing is the partner Exchange server, make another server the partner server. For more information, see Chapter 4, "Changing the Partner Exchange Server."

2. If the Cisco Unity Voice Connector for Microsoft Exchange is installed on the server you are replacing, uninstall the Voice Connector, and install it on another Exchange server. For more information, see the applicable Release Notes for Cisco Unity Voice Connector for Microsoft Exchange at http://www.cisco.com/en/US/products/sw/voicesw/ps2237/prod_release_notes_list.html.

After you add the replacement server to the environment, do the following two procedures to download and run the Cisco Unity Permissions wizard to grant the Cisco Unity message store services account the required permissions to the new mailstore(s).


Caution When the Permissions wizard completes, the Lsass.exe process updates the Active Directory database with the new permissions. While Lsass.exe is processing the updates, it uses 100% of available processor time on the root domain controller in the domain and on one of the global catalog servers in the site where the Permissions wizard was run. (Other domain controllers in the domain and other global catalog servers in the forest are also affected, but the impact is less significant.) The updates take a few minutes to several hours, depending on the size of the database. Do not continue with changing the partner server until Lsass.exe has finished processing the changes, or the process may fail.

To Download the Latest Cisco Unity Permissions Wizard


Step 1 Download the latest version of the Cisco Unity Permissions wizard for Cisco Unity 5.0(1) and later, available at http://ciscounitytools.com/App_PW_501.htm.


To Run the Cisco Unity Permissions Wizard


Step 1 On the Cisco Unity server, install the latest version of the Cisco Unity Permissions wizard, if it is not already installed.

Step 2 Log on to the Cisco Unity server by using an account that meets the following criteria:

Is a member of the Domain Admins group in the domain in which the Cisco Unity server is installed.

Is either an Exchange Full Administrator or a member of the Domain Admins group in the domain in which Exchange mailboxes for Cisco Unity subscribers are homed. (If Exchange mailboxes are homed in multiple domains, the account that you log on with must be either an Exchange Full Administrator or a member of the Domain Admins group in a domain that contains all of the domains in which mailboxes are homed.)


Caution If you try to run the Permissions wizard by using an account that has less than the default permissions for a Domain Admin, the wizard may not be able to set all of the permissions required by the installation account and the service accounts. If the Permissions wizard cannot set all of the required permissions, Cisco Unity will not run properly.

Step 3 Run the Permissions wizard from the directory in which you installed it in Step 1. For more information, refer to Permissions wizard Help.


Caution Remember to specify the mailstore(s) on the replacement server so Cisco Unity has the necessary permissions to access the mailstores. Otherwise, Cisco Unity subscribers whose Exchange mailboxes are homed on the server will not be able to send or receive voice messages.

Step 4 Restart the Cisco Unity server.