Configure VCS to install OnCommand Workflow Automation

Contributors

Before you install OnCommand Workflow Automation (WFA) in Veritas Cluster Server (VCS), you must ensure that the cluster nodes are properly configured to support WFA.

  • VCS must be installed on both nodes of the cluster according to the instructions in the Veritas Cluster Server 6.1.1 Installation Guide.

  • To receive notifications about cluster events, VCS software must be configured for SNMP and SMTP according to the instructions in the Veritas Cluster Server Administrator’s Guide.

  • All requirements and guidelines for configuring cluster servers must be met according to the VCS documentation.

  • SnapDrive for UNIX must be installed if you want to create LUNs using SnapDrive for UNIX.

  • Both the cluster nodes must be running a supported version of the operating system.

    The minimum supported operating systems are Red Hat Enterprise Linux 7.0 and VCS 6.1.1.

  • The same version of WFA must be installed using the same path on both the cluster nodes.

  • The WFA server must be connected to the storage system through Fibre Channel (FC) or iSCSI.

  • The latency must be minimum between the WFA server and the storage system.

  • The FC link must be active, and the LUNs that are created must be accessible to both the cluster nodes.

  • A minimum of two network interfaces must be set up on each system: one for node-to-node communication and the other for node-to-client communication.

  • The name of the network interface used for node-to-client communication should be the same on both the systems.

  • A separate heartbeat link must be established between the cluster nodes; otherwise, the network interface is used to communicate between the cluster nodes.

  • A shared location must be created for high availability.

    You can use SnapDrive for UNIX to create the shared location.

    You can also manage the LUNs using SnapDrive or the storage system command-line interface. See the SnapDrive for UNIX compatibility matrix for more information.

Steps
  1. Verify that VCS is installed correctly: hastatus –summary

    Both the nodes must be online, and the VCS service must be running on both the nodes.

  2. Verify that the LUNs are accessible to both the nodes by using one of the following options:

    • Manage the LUNs natively.

    • Use SnapDrive for UNIX:

      1. Install SnapDrive for UNIX on both the nodes.

      2. Configure SnapDrive for UNIX on both nodes.

      3. From the first node, run the snapdrive storage create command to create a LUN.

      4. Verify that the LUN created on the first node is visible on the second node by running the snapdrive storage show –all command.