Tasks for a new high availability (HA) installation - additional applications
This chapter provides information on how to install and configure the high availability and application components.
| Active-Passive | One application instance per node with one to one failover capabilities |
|---|---|
| The active node of the cluster hosts the virtual server. The second node is a dedicated redundant server able to take over and host the virtual server in the event of a failure on the active node. | |
| Active-Active | Multiple application instances per cluster node |
| For example, in a two-node cluster with two application instances, a different instance is online on each of the two servers. If a failure occurs, the instance on the failing node is brought online on the other server, resulting in two instances online on one server. |
The following table outlines the high-level objectives for implementing the configuration and the tasks for each objective.
Related information
Table: Task list: New High Availability configuration
| Objectives | Tasks |
|---|---|
| See Reviewing the InfoScale installation requirements . | - Verify the hardware and software prerequisites. |
| - Review the requirements. | |
| See Reviewing the configuration . | Review the configuration |
| See Configuring the storage hardware and network . | Configure the storage hardware and network. |
| See About installing the Veritas InfoScale products . | Install the product. |
| See Configuring disk groups and volumes . | - Plan your storage layout. |
| - Create disk groups. | |
| - Create volumes. | |
| - Manage disk groups and volumes. | |
| See Configuring the cluster using the Cluster Configuration Wizard . | Use the VCS Cluster Configuration Wizard (VCW) to set up the cluster |
| See About installing and configuring the application or server role . | - As necessary, install the application program files on the local system drive of the first node. |
| - Install files relating to the data and logs on the target storage. | |
| - Deport the disk groups on the first node and import them on the second node. Install the application on the second node. | |
| See Configuring the service group . | - Use the applicable wizard to create and configure the VCS service group or groups. |
| - Create the application service group manually using templates from the Cluster Manager (Java Console) (if using a non-shared storage configuration). | |
| - Bring the service group online. | |
| See Enabling fast failover for disk groups (optional) . | - Use the Java Console to enable the FastFailover attribute for VMDg resources. |
| See Verifying the cluster configuration . | - Switch the service group to the second node. |
| - Shut down an active cluster node. | |
| See Possible tasks after completing the configuration . | - Modify the cluster configuration. |
| - Modify the application or server role service group. |