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How do I configure and manage the SMS for a High Availability (HA) cluster?

    • Updated:
    • 24 Aug 2017
    • Product/Version:
    • TippingPoint SMS All
    • TippingPoint Virtual SMS
    • Platform:
Summary
The SMS can be configured to operate in a two-node cluster, increasing availability of the SMS server should an unexpected event cause one of the nodes to fail or become inaccessible.
Details
Public

SMS HA Administration Concepts and Planning

The most important aspects of the SMS HA cluster are the heartbeat connection and database replication. Periodically, verify that both activities are performing as expected. If you need to upgrade SMS software or apply an SMS patch, you must break apart the cluster and upgrade, or patch, each of the two SMS HA cluster nodes independently. The reason for this is that one of the nodes is always passive and therefore the SMS software is not fully operational and cannot be upgraded or patched. If you need to perform maintenance on the active SMS server, for example to swap out a network card, you can invoke a failover on the active node, which deactivates it and activates the passive SMS server. Once deactivated you can take the node offline, power it off, and perform maintenance on it. Two methods are available in the Admin - High Availability screen to deactivate the currently active SMS server:

Swap - swaps the roles of the SMS HA cluster nodes so that the passive SMS server becomes the active SMS server and the active SMS server is reconfigured as the passive server. This process resynchronizes and restarts the nodes to ensure that HA status of the cluster is maintained. This process involves a temporary disconnect of the client and is temporarily more disruptive than failover.

Failover - invokes a failover of the active node in the SMS HA cluster, thereby activating the passive SMS server making it immediately available for use. To bring the failed-over node back online and reinstate a fully functioning HA cluster, you must manually synchronize and restart the deactivated node.

 


How To: Common Task

  1. Log in to the SMS from a client.
  2. On the SMS toolbar, navigate to the Admin->High Availability tab.

 

HA Cluster Status

In the HA Cluster Status area of the High Availability screen, you can view the current status of the SMS HA cluster, view the management IP address and network of the SMS cluster. As well, you can configure and set up a new SMS HA cluster.

 

How To: Configure an SMS HA Cluster

  1. In the HA Cluster Status area, click Configure. The SMS High Availability Wizard opens.
  2. Read the Welcome screen and click Next.
  3. Choose the network configuration for your SMS HA cluster. If you want all communications to occur over a single network, choose Primary Only. If you want replication and heartbeat signals to occur over a secondary, intra-cluster, network path, choose Primary and Secondary.
  4. Click Next.
  5. If you want to use a Shared Virtual Management IP address, check the check box and enter the IP address. Selecting this option requires that the Shared Virtual Management IP address and the Maintenance IP addresses of the active and passive SMS servers be in the same subnet.
  6. Enter the maintenance IP address of the SMS system you are designating as the passive SMS server.
  7. Click Next.
  8. If you chose the Primary and Secondary network configuration, enter the secondary IP addresses for both the active and passive SMS servers. If you do not require the IP addresses to reside in the same subnet, uncheck the check box and provide gateway IP addresses for the active and passive SMS servers.
  9. Click Next.
  10. Enter the login credentials for the passive SMS server. The credentials must be those of a user with SuperUser rights.
  11. Click Configure. The Configuration Status dialog box opens and displays ongoing status. When the configuration finishes, the HA Cluster Synchronization dialog box opens.
  12. You must synchronize the SMS databases that exist on the two SMS cluster nodes. The source and destination server IP addresses are shown. Check the check box for Synchronize the HA cluster. You can include all historical event data by checking the check box: Include historical event data.
  13. Click Finish.
  14. A dialog box opens stating that the client connection to the SMS server is lost. All client connections are disconnected because access to the SMS database is prohibited during the synchronization process. To monitor progress, click More. The HA Synchronization Status dialog box opens, displaying a progress bar, time elapsed, and so on.
  15. When synchronization finishes, the SMS client automatically attempts to reestablish a connection with the active SMS server. When the connection is reestablished, the SMS client opens to the Admin - High Availability screen.
  16. Verify the operational state of the cluster by ensuring the Active SMS status displays Active and the Passive SMS status displays Passive. If you chose the Primary and Secondary network configuration, verify that the Heartbeat IP addresses for each SMS cluster node are as expected.

 

How To: Synchronize Two Nodes in an SMS HA Cluster

SMS monitors the needs to synchronize the cluster nodes. In typical operations, you will not need to synchronize. When you manually failover a cluster node or take offline one of the nodes, you need to re-synchronize the SMS cluster.

  1. In the HA Cluster Status area, click Synchronize.
  2. In the dialog box, choose to include, or not include, historical event data in the synchronization. Select the synchronization source, either the default source which is the most recent active SMS server or specify another source from the drop-down list.

 

How To: Disable SMS HA

  1. In the HA Cluster area, click Disable.
  2. Once disabled, the two nodes of the SMS HA cluster now act independently. Ensure one of the SMS servers is rendered inaccessible to SMS clients and devices so that the two servers do not compete with each other. The best way to accomplish this is to shutdown one of the servers.

 

Active SMS - In the Active SMS area of the High Availability screen, the SMS displays the system name, status, maintenance IP address, and heartbeat IP address of the active SMS server. To change the roles of the active and passive nodes, or deactivate an active SMS server, see the tasks described in the Passive SMS section.

 

Passive SMS - In the Passive SMS area of the High Availability screen, the SMS displays the system name, status, maintenance IP address, and heartbeat IP address of the passive SMS server. From within this area you can manually activate the passive SMS server, which in turn deactivates the current active SMS server if it is operational, by invoking a failover. You can also swap roles of the active and passive SMS servers.

 

How To: Swap Roles of SMS HA Cluster Nodes

This task describes how to swap the roles of the active and passive SMS servers and automatically resynchronize the servers to maintain a high availability cluster.

 

  1. From the Admin Navigation menu, select High Availability.
  2. In the Passive SMS area, click Swap.
  3. When the dialog box appears, click OK to start the swap process.

 

During this process the passive SMS server is promoted to active status and the active server is reconfigured to the role of passive SMS server. This process can take several minutes, in which time the cluster is re-synchronized, nodes are restarted, and the client is temporarily disconnected to reestablish the cluster to a fully functional active-passive state. The operational state of the cluster is shown as Configured for the active SMS server and for the passive SMS server until the synchronization process finishes.

 

How To: Invoke Failover to Activate a Passive SMS

This task describes how to activate a passive SMS server and immediately begin using it as the active SMS server. This action is useful when you need to perform maintenance tasks on the active node. To return the failed-over node to active status, you must manually re-synchronize and restart the server.

 

  1. From the Admin Navigation menu, select High Availability.
  2. In the Passive SMS area, click Failover.
  3. When the dialog box appears, select OK to invoke failover and activate the passive SMS server.

 

The active server fails over to the passive server, which now becomes your active server. You can power off the deactivated server and perform maintenance. To reactivate your passive server and reinstate your cluster to a fully functioning high-availability state, you must bring the deactivated server back online, synchronize the cluster databases and restart the server

 

Reference: SMS User Guide

Premium
Internal
Rating:
Category:
Configure; Troubleshoot; Deploy
Solution Id:
TP000086728
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