Cisco WebEx Meetings Server Administration Guide Release 1.5
Adding a High Availability System
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Adding a High Availability System

Adding a High Availability System

Adding High Availability to a System by using Automatic Deployment

Considerations Before Adding a High Availability (HA) System

A HA system is a redundant system that is created, then added to a primary system. In the event of a virtual machine failure, the system falls back to the HA system.

The HA system has the following constraints:

  • The HA system must be at the same release version as the primary system. If you update the primary system, the HA system must be updated.
  • If the primary system currently has HA and you are deploying a new HA system, you cannot reuse the virtual machines in the previous HA system. Remove the old HA and deploy the new HA system with new virtual machines.
  • Because this process adds new virtual machines to your system, your current security certificate becomes invalid and requires an updated certificate unless you are using a self-signed certificate.
  • If you are entitled (with the appropriate service contract), we recommend that you deploy the HA system by using the OVA file that is the same base version (before any patches) as the primary system.
  • The HA system size must be the same as the primary system size.
  • The HA system internal virtual machines must be on the same subnet as the primary system internal virtual machines.
  • If you have added public access on the primary system, you must add it to the HA system. Also, the HA system Internet Reverse Proxy virtual machine must be on the same subnet as the primary system Internet Reverse Proxy virtual machine.

Before You Begin

The following conditions should be met before adding High Availability (HA) to a system:

Summary of Tasks to Add a High Availability System Using Automatic Deployment

Follow these tasks in order.

Task Description For Details, See
1 Using the VMware vSphere client, deploy the Admin virtual machine for the HA system. Deploying the OVA File From the VMware vSphere Client
2 Power on the Admin virtual machine of the HA system, and write down the deployment URL.  
3 Enter the Admin URL into a web browser and continue the deployment of your HA system.  
4 Select your preferred language for the deployment of the HA system. Selecting Your Language for Setup
5 Confirm the system size for the HA system. (This system size must match the primary system.) Confirming the Size of Your System
6 Select Create a High Availability (HA) redundant system. Choosing What System to Install
7 Select automatic deployment. (We recommend using the same process used to deploy the primary system.) Choosing the Type of System Deployment
8 Enter your vCenter credentials so that we can deploy the HA system virtual machines for you. Providing VMware vCenter Credentials
9 (As is applicable) select the ESXi host, datastore, and virtual machine port group for the media virtual machine for the HA system.

Choose the same virtual machine port group for the HA system as is used for the primary system.

Choosing vCenter Settings for your Media Virtual Machine
10 (As is applicable) enter the fully qualified domain name (FQDN) of the HA system media virtual machine. (If you have already updated your DNS server with entries for the HA system, then we will look up the IP address for you.) Entering Networking Information for the Media Virtual Machine
11 If the primary system supports public access, verify that Create an Internet Reverse Proxy virtual machine is enabled. Otherwise, uncheck this check box.

If you have not enabled public access, skip this step and go to Step 14.

Adding Public Access
12 If the primary system supports public access, select the ESXi host, datastore, and virtual machine port group for the Internet Reverse Proxy virtual machine for the HA system.

Choose the same virtual machine port group for the HA system as is used for the primary system.

Choosing vCenter Settings for Your Internet Reverse Proxy
13 Enter the hostname and networking information for the Internet Reverse Proxy. Entering the Networking Information for the Internet Reverse Proxy
14 Check that you have made all the networking, DNS server, and firewall configuration changes required for your HA system. Confirming That Your Network is Configured Correctly
15 After your HA system virtual machines are deployed, select Next to continue to the HA system check. Deploying Your Virtual Machines
16 After the HA system check is completed, select Next. Checking Your System
17 Confirm that the primary system and the HA system are at the same version. If not, update the HA system. Confirming Your Primary System and Your HA System Are at the Same Version
18 Add this high availability system to the primary system in Cisco WebEx Administration. Adding a High Availability System

Adding High Availability to a System by using Manual Deployment

Considerations Before Adding a High Availability (HA) System

A HA system is a redundant system that is created, then added to a primary system. In the event of a virtual machine failure, the system falls back to the HA system.

The HA system has the following constraints:

  • The HA system must be at the same release version as the primary system. If you update the primary system, the HA system must be updated.
  • If the primary system currently has HA and you are deploying a new HA system, you cannot reuse the virtual machines in the previous HA system. Remove the old HA and deploy the new HA system with new virtual machines.
  • Because this process adds new virtual machines to your system, your current security certificate becomes invalid and requires an updated certificate unless you are using a self-signed certificate.
  • If you are entitled (with the appropriate service contract), we recommend that you deploy the HA system by using the OVA file that is the same base version (before any patches) as the primary system.
  • The HA system size must be the same as the primary system size.
  • The HA system internal virtual machines must be on the same subnet as the primary system internal virtual machines.
  • If you have added public access on the primary system, you must add it to the HA system. Also, the HA system Internet Reverse Proxy virtual machine must be on the same subnet as the primary system Internet Reverse Proxy virtual machine.

Before You Begin

The following conditions should be met before adding High Availability (HA) to a system:

Summary of Tasks to Add a High Availability System Using Manual Deployment

Follow these tasks in order.

Task Description For Details, See
1 Using the VMware vSphere client, deploy the Admin virtual machine for the HA system. Deploying the OVA File From the VMware vSphere Client
2 Power on the Admin virtual machine of the HA system, and write down the deployment URL.  
3 Enter the Admin URL into a web browser and continue the deployment of your HA system.  
4 Select your preferred language for the deployment of the HA system. Selecting Your Language for Setup
5 Confirm the system size for the HA system. (This system size must match the primary system.) Confirming the Size of Your System
6 Select Create a High Availability (HA) redundant system. Choosing What System to Install
7 Select manual deployment. (We recommend using the same process used to deploy the primary system.) Choosing the Type of System Deployment
8 If the primary system supports public access, verify that Create an Internet Reverse Proxy virtual machine is enabled. Otherwise, uncheck this check box. Adding Public Access
9 Check that you have made all the networking, DNS server, and firewall configuration changes required for your HA system. Confirming That Your Network is Configured Correctly
10 After your HA system virtual machines are deployed, select Next to continue to the HA system check. Deploying Your Virtual Machines
11 After the HA system check is completed, select Next. Checking Your System
12 Confirm that the primary system and the HA system are at the same version. If not, update the HA system. Confirming Your Primary System and Your HA System Are at the Same Version
13 Add this high availability system to the primary system in Cisco WebEx Administration. Adding a High Availability System

Confirming Your Primary System and Your HA System Are at the Same Version

The high availability (HA) system must be at exactly the same release as your primary system. The version of the HA system is listed on the browser page. To check the version of the primary system, complete the following steps on the primary system:

Procedure
    Step 1   In a separate browser window, sign in to the WebEx Administration site on the primary system.
    Step 2   On the Dashboard tab, check the primary system version number in the System pane.
    Step 3   If the primary system is at a later version than the HA system, then you must either redeploy the HA system using a newer OVA file (for a later version of the software) or update the HA system.
    Note    To update the HA system, first back up the virtual machines. For details, see Creating a Backup by using VMware vCenter.
    Step 4   When a HA update is required, then after deploying the HA system, select update on the browser connected to the HA system.
    Step 5   Download the appropriate update file from Cisco:

    Download Software

    Place the update file on a local disk or on a datastore available to the HA system.

    Step 6   Select Continue on the browser connected to the HA system.
    Step 7   Connect the CD/DVD drive to the ISO update file in the Admin virtual machine of the HA system.

    See Connecting the Update ISO Image From the CD/​DVD Drive.

    Step 8   Check I have connected to the ISO file and am ready to proceed and select Continue.
    Caution    Once you select Continue, you will not be able to stop the update procedure. If an issue arises during the update procedure and it does not complete successfully, you must use backup files to restore the system.

    The update procedure might take up to an hour. Do not close this browser window, as you will be unable to return to this page.

    Once the update is complete, a new dialog is displayed confirming the success of the update.

    Step 9   Select Restart.

    Once the system has restarted, the HA created system page is displayed with a message indicating the success of the update.


    What to Do Next

    Add this high availability system to the primary system in Cisco WebEx Administration on the primary system.

    Adding a High Availability System


    Note


    Most of the features on your high-availability system are prohibited. For example you do not have access to upgrade, SNMP configuration, storage access, or email servers on your high-availability system. You can view system properties, but modification is prohibited.



    Note


    Complete the following procedure on the primary system.


    Before You Begin
    • Install Cisco WebEx on a second virtual machine from the OVA file to be used as your high availability system.

      Note


      Your high-availability system must be the same size as your primary system.


    • Your high-availability system must be configured with the same OVA and patch as your primary system. If your primary and high-availability systems' versions do not match, you will be instructed to upgrade to the higher version.
    • Copy the high-availability virtual machine fully qualified domain name (FQDN). You must know the FQDN to add your high-availability system.
    • Verify that all virtual machines are functioning normally. Determine virtual machine status by viewing the System Monitor as described in About Your Dashboard.
    Procedure
      Step 1   Sign in to the Administration site.
      Step 2   Select Turn On Maintenance Mode.
      Step 3   On the primary system, in the System section, select the View More link.
      Step 4   Select Add High Availability System.
      Step 5   Follow the instructions on the System Properties page to add this HA system.
      Step 6   Enter the FQDN of the Administration site virtual machine of the high-availability system and select Continue.

      We will validate the readiness of both the primary system and the HA system for this add HA procedure.

      • If both systems are ready, then you will see a green Add button. Do not select it until you put your system into maintenance mode.
      • If either system is not ready, then you will see an error message. Fix the error and attempt the add high availability procedure again.
      Step 7   Select Add.

      Your high-availability system is added and automatically configured to serve as a backup in the event of a primary system failure.

      Step 8   Select Turn Off Maintenance Mode and Continue to confirm.

      Your system reboots after you turn off maintenance mode. You can sign back into the Administration site after restart is complete.