Replace a Single Server or Cluster for Cisco Unified Communications Manager Relase 9.1(1)
Complete replacement
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Complete replacement

Complete replacement

Create backup

The following sections describe how to set up and run a backup before an upgrade. Refer to the Disaster Recovery System Administration Guide for more information.

If you are recovering or replacing a server, you can skip this section on creating backups and restore the server from the most recent backup that is available.

Related Tasks

Supported features and components

You can back up and restore the features and subcomponents that are shown in the following table. For each feature that you choose, the system backs up all its subcomponents automatically.

Table 1 Supported Features and Components

Feature

Components

CCM - Cisco Unified Communications Manager

Cisco Unified Communications Manager (version 6.x) database (CMDB)

Platform

Cisco Unified Serviceability

Music On Hold (MOH)

Cisco Emergency Responder (CER)

Bulk Tool (BAT)

Preference

Phone device files (TFTP)

syslogagt (SNMP syslog agent)

cdpagent (SNMP cdp agent)

tct (trace collection tool)

Call Detail Records (CDR)

CDR Analysis and Reporting (CAR)

Configure features for backup

Before you can schedule or start a backup job, you must configure the features that you want to back up.


Note


Changing a backup feature changes it for both manual and scheduled backups.


Perform the following steps to choose the features that you want to back up.

Procedure
    Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

    The Disaster Recovery System Logon window displays.

    Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
    Step 3   Navigate to Backup > Configure Features.
    Step 4   From the list of available features, choose the feature or features that you want to include in the backup and click Save. You must choose at least one feature.
    Step 5   Continue with the next procedure for configuring a storage location.

    Configure storage location

    Before using the Disaster Recovery System, you must configure the location where you want the backup file to be stored. Perform the following steps to configure the storage location.

    Procedure
      Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

      The Disaster Recovery System Logon window displays.

      Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
      Step 3   Navigate to Backup > Storage Location. The Storage Location window displays.
      Note   

      You can configure the number of backup sets that are stored on a network directory.

      Step 4   Select the Network Directory option to store the backup data on a networked drive that is accessed through an SFTP connection.
      Step 5   Enter the following required information:
      • Server name: Name or IP address of the network server
      • Path name: Path name for the directory where you want to store the backup file
      • User name: Valid username for an account on the remote system
      • Password: Valid password for the account on the remote system
        Note   

        You must have access to an SFTP server to configure a network storage location. The SFTP path must exist prior to the backup. Ensure that the account that is used to access the SFTP server has write permission for the selected path.

      Step 6   To update these settings, click Save.
      Note   

      For network directory backups, after you click the Save button, the DRS Master Agent will validate the selected SFTP server. If the user name, password, server name, or directory path is invalid, the save will fail.

      Step 7   Continue with either a manual or a scheduled backup.

      Start backup

      You can manually start a backup of the features that you choose on the Configure Features menu. Perform the following steps to start a manual backup.

      Procedure
        Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

        The Disaster Recovery System Logon window displays.

        Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
        Step 3   Navigate to Backup > Manual Backup. The Manual Backup window displays.
        Step 4   Make sure the features that you want to back up are chosen. To choose other features, see the Configure features for backup.
        Note   

        Ensure all servers in the cluster are running the same version of Cisco Unified Communications Manager and are reachable through the network. Servers that are not running at the time of the scheduled backup will not get backed up.

        Step 5   To begin the manual backup, click Start Backup.
        Step 6   Make sure that you have configured the backup storage location. See the Configure storage location.

        Check backup status

        Perform the following steps to check the status of the current backup job.

        Procedure
          Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

          The Disaster Recovery System Logon window displays.

          Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
          Step 3   Navigate to Backup > Current Status. The Backup Status window displays.
          Step 4   To view the backup log file, click the log filename link.
          Step 5   To cancel the current backup, click Cancel Backup.
          Note   

          The backup cancels after the current component completes its backup operation.


          Obtain license file

          If you have to replace the first node in your Cisco Unified Communications Manager cluster, you must open a case with the licensing team to obtain a license for your replacement server. Contact the licensing team at licensing@cisco.com. After you receive the new license file, upload the software license file.


          Note


          Replacing a motherboard on the first node also requires a new license file.


          Related Tasks

          Verify NTP status

          If you are getting the system time from an NTP server, verify that the publisher node can synchronize with the NTP server before you install a subscriber node.

          To verify the NTP status of the first node, log into the command line interface on the publisher node and enter the following command:

          utils ntp status

          For more information, see the Cisco Unified Communications Operating System Administration Guide.


          Caution


          If the first node fails to synchronize with an NTP server, installation of a subsequent node can also fail.


          Install software on publisher server

          Use this procedure to install Cisco Unified Communications Manager on the new publisher server. For more information about installing this product, refer to the document, Installing Cisco Unified Communications Manager.

          Procedure
            Step 1   Insert the installation DVD into the tray and restart the server, so it boots from the DVD. After the server completes the boot sequence, the DVD Found window displays.
            Step 2   To perform the media check, choose Yes or, to skip the media check, choose No.

            The media check checks the integrity of the DVD. If your DVD passed the media check previously, you might choose to skip the media check.

            Step 3   If you choose Yes to perform the media check, the system installer performs the media check and displays the Media Check Result window. Perform these tasks:
            1. If the Media Check Result displays Pass, choose OK to continue the installation.
            2. If the media fails the media check, either download another copy of the software from Cisco.com or obtain another disc directly from Cisco.
            Step 4   The system installer performs the following hardware checks to ensure that your system is correctly configured. If the installer makes any changes to your hardware configuration settings, you will get prompted to restart your system. Leave the DVD in the drive during the restart.
            • First, the installation process checks for the correct drivers, and you may see the following warning:
              No hard drives have been found. You probably need to manually 
              choose device drivers for install to succeed. 
              Would you like to select drivers now?
              To continue the installation, choose Yes.
            • The installation next checks to see whether you have a supported hardware platform. If your server does not meet the exact hardware requirements, the installation process fails with a critical error. If you think this is not correct, capture the error and report it Cisco support.
            • The installation process next verifies RAID configuration and BIOS settings.
              Note   

              If this step repeats, choose Yes again.

            After the hardware checks complete, the Product Deployment Selection window displays.

            Step 5   In the Product Deployment Selection window, select Cisco Unified Communications Manager; then, choose OK.
            Step 6   If software is currently installed on the server, the Overwrite Hard Drive window opens and displays the current software version on your hard drive and the version on the DVD. To continue with the installation, choose Yes, or choose No to cancel.
            Caution   

            If you choose Yes on the Overwrite Hard Drive window, all existing data on your hard drive gets overwritten and destroyed.

            Step 7   The Platform Installation Wizard window displays.
            Step 8   To configure the platform now, choose Proceed.
            Step 9   In the Basic Install window, choose Continue to install the software version on the DVD.
            Step 10   When the Timezone Configuration displays, choose the appropriate time zone for the server and then choose OK.

            The Auto Negotiation Configuration window displays.

            Step 11   The installation process allows you to automatically set the speed and duplex settings of the Ethernet network interface card (NIC) by using automatic negotiation. You can change this setting after installation.
            • To enable automatic negotiation, choose Yes. The MTU Configuration window displays.
              Note   

              To use this option, your hub or Ethernet switch must support automatic negotiation.

            • To disable automatic negotiation, choose No and continue with the next step. The NIC Speed and Duplex Configuration window displays.
            Step 12   If you chose to disable automatic negotiation, manually choose the appropriate NIC speed and duplex settings now and choose OK to continue.

            The MTU Configuration window displays.

            Step 13   In the MTU Configuration window, you can change the MTU size from the operating system default.

            The maximum transmission unit (MTU) represents the largest packet, in bytes, that this host will transmit on the network. If you are unsure of the MTU setting for your network, use the default value, which is 1500 bytes.

            Caution   

            Configuring the MTU size incorrectly can affect your network performance.

            • To accept the default value (1500 bytes), choose No.
            • To change the MTU size from the operating system default, choose Yes, enter the new MTU size, and choose OK.

            The DHCP Configuration window displays.

            Step 14   For network configuration, you can choose to either set up static network IP address for the node or to use Dynamic Host Configuration Protocol (DHCP).
            • If you have a DHCP server that is configured in your network and want to use DHCP, choose Yes. The Administrator Login Configuration window displays.
            • If you want to configure static IP address for the node, choose No and continue with the next step. The Static Network Configuration window displays.
            Step 15   If you chose not to use DHCP, enter your static network configuration values and choose OK. See Record network configuration settings for field descriptions.

            The DNS Client Configuration window displays.

            Step 16   To enable DNS, choose Yes, enter your DNS client information, and choose OK. See Record network configuration settings for field descriptions.

            The Administrator Login Configuration window displays.

            Step 17   Enter your Administrator login and password from Account names and passwords record.

            The Certificate Signing Request Information window displays.

            Step 18   Enter your certificate signing request information and choose OK.

            The First Node Configuration window displays.

            Step 19   To configure this server as the first Cisco Unified Communications Manager node, choose Yes.

            The Network Time Protocol Client Configuration window displays.

            Step 20   Choose whether you want to configure an external NTP server or manually configure the system time.
            Note   

            Cisco recommends that you use an external NTP server to ensure accurate system time on the first node. Ensure the external NTP server is stratum 9 or higher (meaning stratums 1-9). Subsequent nodes in the cluster will get their time from the first node.

            • To set up an external NTP server, choose Yes and enter the IP address, NTP server name, or NTP server pool name for at least one NTP server. You can configure up to five NTP servers, and Cisco recommends that you use at least three. Choose Proceed to continue with the installation. The system contacts an NTP server and automatically sets the time on the hardware clock.
            Note   

            If you already entered the network configuration information and the system rebooted (a Skip installation), the Test button displays. You can choose Test to check whether the NTP servers are accessible.

            • To manually configure the system time, choose No and enter the appropriate date and time to set the hardware clock. Choose OK to continue with the installation.

            The Database Access Security Configuration window displays.

            Step 21   Enter the Database Access Security password from Account names and passwords record.

            The SMTP Host Configuration window displays.

            Step 22   If you want to configure an SMTP server, choose Yes and enter the SMTP server name.
            Note   

            You must configure an SMTP server to use certain platform features; however, you can also configure an SMTP server later by using the operating system GUI or the command line interface.

            Step 23   Choose OK.

            The Platform Configuration Confirmation window displays.

            Step 24   To continue with the installation, choose OK.

            The Application User Password Configuration window displays.

            Note   

            If you need to change one of your previous entries, choose Back, make the change, and continue with the installation.

            Step 25   Enter the Application User Password from Account names and passwords record and confirm the password by entering it again.
            Step 26   Choose OK.

            The system installs and configures the software. The DVD drive ejects, and the server reboots. Do not reinsert the DVD.

            Step 27   When the installation process completes, you get prompted to log in by using the Administrator account and password.
            Step 28   Complete the rest of the tasks that are listed in the Replace publisher node.

            Install software on subscriber server

            Use this procedure to install Cisco Unified Communications Manager on a new subscriber server.

            Procedure
              Step 1   If you configured Network Time Protocol (NTP) on the publisher node, ensure that the publisher node is synchronized with an NTP server before you install a subscriber node. From the Command Line Interface on the publisher node, enter the command utils ntp status. Ensure that the printout indicates that the node is synchronized with an NTP server.
              Note   

              If the first node is not synchronized with an NTP server, installation of the subsequent node will fail.

              Step 2   Insert the installation DVD into the tray and restart the server, so it boots from the DVD. After the server completes the boot sequence, the DVD Found window displays.
              Step 3   To perform the media check, choose Yes or, to skip the media check, choose No.

              The media check checks the integrity of the DVD. If your DVD has passed the media check previously, you might choose to skip the media check.

              Step 4   If you choose Yes to perform the media check, the system installer performs the media check and displays the Media Check Result window. Perform these tasks:
              1. If the Media Check Result displays Pass, choose OK to continue the installation.
              2. If the media fails the media check, either download another copy of the software from Cisco.com or obtain another disc directly from Cisco.
              Step 5   The system installer performs the following hardware checks to ensure that your system is correctly configured. If the installer makes any changes to your hardware configuration settings, you will get prompted to restart your system. Leave the DVD in the drive during the reboot.
              • First, the installation process checks for the correct drivers, and you may see the following warning:
                No hard drives have been found. You probably need to manually 
                choose device drivers for install to succeed. 
                Would you like to select drivers now?
                To continue the installation, choose Yes.
              • The installation next checks to see whether you have a supported hardware platform. If your server does not meet the exact hardware requirements, the installation process fails with a critical error. If you think this is not correct, capture the error and report it Cisco support.
              • The installation process next verifies RAID configuration and BIOS settings.
                Note   

                If this step repeats, choose Yes again.

              After the hardware checks complete, Product Deployment Selection window displays.

              Step 6   In the Product Deployment Selection window, select Cisco Unified Communications Manager; then, choose OK.
              Step 7   If software is currently installed on the server, the Overwrite Hard Drive window opens and displays the current software version on your hard drive and the version on the DVD. Choose Yes to continue with the installation or No to cancel.
              Caution   

              If you choose Yes on the Overwrite Hard Drive window, all existing data on your hard drive gets overwritten and destroyed.

              Step 8   The Platform Installation Wizard window displays.
              Step 9   To configure the platform now, choose Proceed.
              Step 10   In the Basic Install window, choose Continue to install the software version on the DVD.
              Step 11   When the Timezone Configuration displays, choose the appropriate time zone for the server and then choose OK.

              The Auto Negotiation Configuration window displays.

              Step 12   The installation process allows you to automatically set the speed and duplex settings of the Ethernet network interface card (NIC) by using automatic negotiation. You can change this setting after installation.
              • To enable automatic negotiation, choose Yes. The MTU Configuration window displays.
                Note   

                To use this option, ensure that your hub or Ethernet switch supports automatic negotiation.

              • To disable automatic negotiation, choose No and continue with the next step. The NIC Speed and Duplex Configuration window displays.
              Step 13   If you chose to disable automatic negotiation, manually choose the appropriate NIC speed and duplex settings now and choose OK to continue.

              The MTU Configuration window displays.

              Step 14   In the MTU Configuration window, you can change the MTU size from the operating system default.

              The maximum transmission unit (MTU) represents the largest packet, in bytes, that this host will transmit on the network. If you are unsure of the MTU setting for your network, use the default value, which is 1500 bytes.

              Caution   

              Configuring the MTU size incorrectly can affect your network performance.

              • To accept the default value (1500 bytes), choose No.
              • To change the MTU size from the operating system default, choose Yes, enter the new MTU size, and choose OK.

              The DHCP Configuration window displays.

              Step 15   For network configuration, you can choose to either set up static network IP address for the node or to use Dynamic Host Configuration Protocol (DHCP).
              • If you have a DHCP server that is configured in your network and want to use DHCP, choose Yes. The Administrator Login Configuration window displays.
              • If you want to configure static IP address for the node, choose No and continue with the next step. The Static Network Configuration window displays.
              Step 16   If you chose not to use DHCP, enter your static network configuration values and choose OK. See Record network configuration settings for field descriptions.

              The DNS Client Configuration window displays.

              Step 17   To enable DNS, choose Yes, enter your DNS client information, and choose OK. See Record network configuration settings for field descriptions.

              The Administrator Login Configuration window displays.

              Step 18   Enter your Administrator login and password from Account names and passwords record.

              The Certificate Signing Request Information window displays.

              Step 19   Enter your certificate signing request information and choose OK.

              The First Node Configuration window displays.

              Step 20   To configure this server as a subsequent node in the cluster, choose No.

              The First Node Configuration window displays.

              Caution   

              You must configure a subsequent node on the first node by using Cisco Unified Communications Manager Administration before you install the subsequent node. For more information, see the Cisco Unified Communications Manager Administration Guide.

              Step 21   On the First Node Configuration window, read the Warning and make sure that you have correctly configured the first node. To continue with the installation of the subsequent node, choose OK.

              The Network Connectivity Test Configuration window displays.

              Step 22   During installation of a subsequent node, the system checks to ensure that the subsequent node can connect to the first node.
              • To pause the installation after the system successfully verifies network connectivity, choose Yes.
              • To continue the installation with a pause, choose No.

              The First Node Access Configuration window displays.

              Step 23   Enter the first node connectivity information to enable this subscriber node to connect to the subscriber node.

              If you chose to pause the system after the system successfully verified network connectivity, the Successful Connection to First Node window displays. Choose Continue.

              Note   

              If the network connectivity test fails, the system always stops and allows you to go back and reenter the parameter information.

              The SMTP Host Configuration window displays.

              Step 24   If you want to configure an SMTP server, choose Yes and enter the SMTP server name.
              Note   

              You must configure an SMTP server to use certain operating system features; however, you can also configure an SMTP server later by using the operating system GUI or the command line interface.

              The Platform Configuration Confirmation window displays.

              Step 25   To start installing the software, choose OK, or if you want to change the configuration, choose Back.
              Step 26   When the installation process completes, you get prompted to log in by using the Administrator account and password.
              Step 27   Complete the rest of the tasks in the Replace subscriber or dedicated TFTP server.

              Upload license file

              Use the following procedure to upload a license file to the Cisco Unified Communications Manager server with the matching MAC address that is provided when a license file is requested. For information about obtaining a license file, see the Obtain license file. The Cisco Unified Communications Manager server where the license file is loaded takes on the functionality of the license manager.


              Note


              Upload the license file only on the first node of Cisco Unified Communications Manager cluster.


              Procedure
                Step 1   Choose System > License > Upload License File.

                The License File Upload window displays.

                Step 2   The Existing License Files drop-down list box displays the license files that are already uploaded to the server.
                Note   

                To view the file content of any existing files, choose the file from the drop-down list box and click View File.

                Step 3   To choose a new license file to upload, click Upload License File.

                The Upload File window displays.

                Step 4   Browse and choose a license file to upload to the server.
                Note   

                The format of the license file that you receive specifies CCM<timestamp>.lic. If you retain the .lic extension, you can rename the license file. You cannot use the license if you edit the contents of the file in any way.

                Step 5   Click Upload License File.

                After the upload process completes, the Upload Result file displays.

                Step 6   Click Close.
                Step 7   In the License File Upload window, the status of the uploaded file displays.
                Note   

                The system uploads the license file into the database only if the version that is specified in the license file is greater than or equal to the Cisco Unified Communications Manager version that is running in the cluster. If the version check fails, an alarm occurs, and you should get a new license file with the correct version. The system bases the version check only on major releases.

                Step 8   Restart the Cisco CallManager service. For information on restarting services, refer to the Administration Guide for Cisco Unity Connection Serviceability.

                Related Tasks

                Delete invalid license files

                The license files that get restored to the server by Disaster Recovery System are invalid because they are bound to the MAC address of the old server. To delete all invalid license files from your server, follow these steps:

                Procedure
                  Step 1   Obtain the MAC address of the new server by running the show status CLI command.

                  The MAC address displays in the field License MAC.

                  Step 2   View each license file on the server to determine which license files are invalid.
                  1. In Cisco Unified Communications Manager Administration, choose System > Licensing > License File Upload.
                  2. Choose a license file from the Existing License Files drop-down list.
                  3. Click the View File button.
                  4. The license file MAC address displays in the HOSTID field.

                    If the license file MAC address does not match the server MAC address, then the license is invalid.

                  5. Record the file name of each invalid license file.
                  6. Repeat this process for each license file on the server.
                  Step 3   Delete each invalid license file from the server by running the CLI command file delete license filename, where filename is the name of the license file.

                  For more information about this command, refer to the document Command Line Interface Reference Guide for Cisco Unifed Communications Solutions.


                  Restore backup file

                  The Restore Wizard takes you through the steps that are required to restore a backup file. To perform a restore, use the procedure that follows.


                  Caution


                  Before you restore Cisco Unified Communications Manager, ensure that the Cisco Unified Communications Manager version that is installed on the server matches the version of the backup file that you want to restore.


                  Procedure
                    Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

                    The Disaster Recovery System Logon window displays.

                    Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
                    Step 3   Navigate to Restore > Restore Wizard. The Restore Wizard Step 1 window displays.
                    Step 4   Choose the Network Directory storage location from which you want to restore the file and enter the following required information for the chosen storage location:
                    • Server name: Name or IP address of the network server
                    • Path name: Path name for the directory from which you want to restore the backup data
                    • User name: Valid username for an SFTP account on the remote system
                    • Password: Valid password for the SFTP account on the remote system
                    Step 5   Click Next. The Restore Wizard Step 2 window displays.
                    Step 6   Choose the backup file that you want to restore.
                    Note   

                    The backup filename indicates the date and time that the system created the backup file.

                    Step 7   Click Next. The Restore Wizard Step 3 window displays.
                    Step 8   Choose the features that you want to restore.
                    Note   

                    Only the features that were backed up to the file that you chose display.

                    Step 9   Click Next. The Restore Wizard Step 4 window displays.
                    Step 10   To start restoring the data, click Restore.

                    You get prompted to choose the node to restore.

                    Step 11   Choose the appropriate node.
                    Caution   

                    After you choose the node to which you want the data restored, any existing data on that server gets overwritten.

                    Step 12   Your data gets restored on the nodes that you chose.
                    Note   

                    Depending on the size of your database and the components that you choose to restore, the system can require 1 hour or more to restore.


                    Related Tasks

                    View restore status

                    To check the status of the current restore job, perform the following steps:

                    Procedure
                      Step 1   Navigate to the Disaster Recovery System. Log in to Cisco Unified Communications Manager Administration, choose Disaster Recovery System from the Navigation menu in the upper, right corner of the Cisco Unified Communications Manager Administration window, and click Go.

                      The Disaster Recovery System Logon window displays.

                      Step 2   Log in to the Disaster Recovery System by using the same Administrator user name and password that you use for Cisco Unified Communications Operating System Administration.
                      Step 3   Navigate to Restore > Status. The Restore Status window displays.
                      Step 4   To view the restore log file, click the log filename link.

                      Complete replacement

                      Perform the following tasks after you complete the cluster replacement:

                      Procedure
                        Step 1   If your server or cluster ran in secure mode, create a new CTL file and distribute it to all the cluster nodes. Do this step after you finish replacing or reinstalling all the servers that you intend to replace or reinstall.

                        For information about performing these tasks and about Cisco Unified Communications Manager security, refer to the Cisco Unified Communications Manager Security Guide.

                        Caution   

                        You must create and distribute a new CTL file, or your secure phones will not work because they cannot register with the replaced Cisco Unified Communications Manager server(s).

                        Step 2   Using the Cisco Unified Communications Manager Real Time Monitoring Tool (RTMT), make sure that all the registration information values match the values that you recorded before the server replacement.
                        Step 3   Using the Cisco Unified Communications Manager Real Time Monitoring Tool (RTMT), make sure that all the critical services and their status match those that you recorded before the server replacement.
                        Step 4   Using the Syslog viewer in the Cisco Unified Communications Manager Real Time Monitoring Tool (RTMT), locate any events that have a severity of Error or higher. Perform this task to ensure that no system-affecting errors exist on your system.
                        Step 5   Using the Syslog viewer in the Cisco Unified Communications Manager Real Time Monitoring Tool (RTMT), check the Replicate_State counter for the Number of Replicates Created and State of Replication object on all nodes. The value on each node should equal 2.

                        This counter represents the state of replication, which includes the following possible values:

                        • 0 - Initializing. The counter equals 0 when the server is not defined or when the server is defined but the realize template has not completed.
                        • 1 - The system created replicates of some tables but not all tables. Cisco recommends that you run utils dbreplication status on the CLI to determine the location and cause of the failure.
                        • 2 - Good Replication.
                        • 3 - Bad Replication. When the counter displays a value of 3, consider replication in the cluster as bad. It does not mean that replication failed on a particular node. Cisco recommends that you run utils dbreplication status on the CLI to determine the location and cause of the failure.
                        • 4 - Replication setup did not succeed.
                        Step 6   To access the appropriate object and counter, use the following procedure:
                        1. Perform one of the following tasks:
                          • In the Quick Launch Channel, click System > Performance; then, click the Performance icon.
                          • Choose Performance > Open Performance Monitoring.
                        2. Double-click the name of the server where you want to add a counter to monitor.
                        3. Double-click the Number of Replicates Created and State of Replication object.
                        4. Double-click the Replicate_State counter.
                        5. Choose the ReplicateCount instance and click Add.
                        Step 7   From Cisco Unified Communications Manager Administration, make sure that the number of phones, gateways, trunks, users, and route patterns that are configured in the database matches the numbers that you recorded before the server replacement.
                        Step 8   From the Firmware Load Information window in Cisco Unified Communications Manager Administration, make sure that the phone load type value matches the value that you recorded before the server replacement.
                        Step 9   Reinstall the COP file enablers for any custom device types that do not ship with Cisco Unified Communications Manager. Then, reboot the cluster and start post-replacement checklist again.
                        Step 10   Reinstall any locales that were installed on the server.
                        Step 11   Compare the system version on each node in your cluster by using Cisco Unified Communications Operating System Administration and make sure that it matches the version that you recorded before the replacement.
                        Step 12   Reconfigure CDR destinations, if applicable.
                        Step 13   Reconfigure all Trace and Log Central jobs.
                        Step 14   Perform any system tests that you performed before the replacement and verify that all test calls succeed.
                        Step 15   Reconfigure DRS location and schedule, if applicable.

                        Related Tasks
                        Related Information

                        Upgrade server hardware

                        The following sections contain information about upgrading server hardware When Upgrading to Cisco Unified Communications Manager Release 8.6(1):

                        Memory recommendations

                        It is strongly recommended that you run Cisco Unified Communications Manager Release 8.6(1) only on servers with at least 4 GB of memory.

                        Upgrade hard drives

                        Follow this procedure to replace 72 GB hard drives with 146 GB hard drives when you upgrade to Cisco Unified Communications Manager Release 8.6(1):

                        Procedure
                          Step 1   Reduce used disk space by following these steps:
                          1. Enter the CLI command show status.

                            If the active partition is 97% full or higher, seriously consider replacing the 72 GB drives with 146 GB drives. Use Real Time Monitoring Tool to monitor disk space usage.

                          2. If you are running Cisco Unified Communications Manager release 6.x or higher, reduce used disk space by performing these steps:
                            • Enter the CLI command utils diagnose module disk_files to identify files that you can delete.
                            • To delete files that you identified, use the CLI command file delete.
                            • Enter the CLI command show status to see the new disk space usage on the active partition.
                          Step 2   Back up the server using Disaster Recovery System.
                          Step 3   If you are running Cisco Unified Communications Manager release 5.x, upgrade the server to a 7.x release. If the upgrade fails, switch back to release 5.x and report the issue to Cisco Technical Support.
                          Step 4   Upgrade the server to release 8.6(1).
                          Step 5   If the upgrade to release 8.6(1) fails due to disk space shortage in /common, as reported by Real Time Monitoring Tool or in the upgrade log file (look for phrases with the word "space" in them, such as "Not enough space on partition to proceed" or "No space left on device"), perform the recommended workaround in Adjust logging, then go back to the previous step.
                          1. If the server originally was running Cisco Unified Communications Manager release 5.x, perform a fresh installation of the same 5.x release, then restore the data using Disaster Recovery System, then go to the next step.
                          2. If the server was originally not running Cisco Unified Communications Manager release 6.x or higher and the switchover to release 8.6(1) occurred, then clean up disk space using the procedure in the first step, then switch back to the previous release.
                          3. Order 146 GB hard drives.
                          4. When the new hard drives are ready to be installed, perform these steps:
                            • Perform a backup of the existing Cisco Unified Communications Manager release using Disaster Recovery System.
                            • Install the new hard drives
                            • Perform a fresh installation of the existing Cisco Unified Communications Manager release.
                            • Restore data to the server using Disaster Recovery System.
                            • Continue with upgrading the server.
                          Step 6   If the upgrade to release 8.6(1) fails for other reasons, contact Cisco Technical Support.
                          Step 7   If the upgrade to release 8.6(1) succeeds, be sure to run Real Time Monitoring Tool and monitor disk space usage, particularly if the active partition found in this procedure was already over 97% disk usage.

                          Adjust logging

                          To change one of the values below, click the right mouse button on the attribute and select Set Alert/Properties. Once in the dialog box, click Next to open the dialog box for modifying the threshold values.

                          Before the upgrade:

                          Procedure
                            Step 1   Launch Real Time Monitoring Tool.
                            Step 2   Select Alert Central, then perform the following tasks:
                            1. Select LogPartitionHighWaterMarkExceeded, note its value and change its threshold value to 60%.
                            2. Select LogPartitionLowWaterMarkExceeded, note its value and change its threshold value to 50%.

                              Polling occurs every 5 minutes, so wait for 5-10 minutes, then verify that the required disk space is available. If you want to free up more disk space in the common partition, change LogPartitionHighWaterMarkExceeded and LogPartitionLowWaterMarkExceeded thread values to lower values (for example, 30% and 20%) again.

                              After the upgrade finishes, change the threshold fields back their original values. The defaults are 95% for high water mark and 90% for low water mark.