Configuring VCS on logical domains to manage applications using services from multiple I/O domains
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Configuring VCS on logical domains to manage applications using services from multiple I/O domains

This section describes how to configure Veritas Cluster Server (VCS) on logical domains to manage applications using services from multiple I/O domains.

Figure: Typical two node VCS cluster setup is configured on logical domains where each guest domain receives I/O services from multiple I/O domains

Typical two node VCS cluster setup is configured on logical domains where each guest domain receives I/O services from multiple I/O domains

The typical two node VCS cluster at guest domain fails over the applications between guest domains to keep the applications highly available.

Configuring VCS on guest domains that uses services from multiple I/O domains

  1. Set up the required hardware, system, storage, and network.
  2. Install the operating system and the Oracle VM Server for SPARC on the physical system.

    Refer to the Oracle documentation for details.

  3. Set up the alternate I/O domain.

    Refer to the Oracle VM Server for SPARC Administration Guide for details.

  4. Set up the guest domain and provide the I/O services from all the I/O domains to the guest domain.

    Refer to the Oracle VM Server for SPARC Administration Guide for details.

    During the setup of the guest domain, you can choose one of the following:

    • Local disk or SAN disk as boot disk to guest domain

    • SAN disk as data disk for application

    Use SAN disk for boot disk and data disk if you plan to migrate the guest domain.

    • If the storage device contains multiple paths from each I/O domain, you have the following options:

      • Install Veritas Dynamic Multipathing (DMP) on the I/O domains

        Export DMP node name from each I/O domain to guest domain. Configure virtual disk multipathing (mpgroup) for the DMP node name between the I/O domains.

        I/O Fencing cannot be configured with VCS on the guest domain when mpgroup is set for storage devices at I/O domain level.

      • Install Veritas Dynamic Multipathing (DMP) on the guest domain

        Export all the paths to storage device from each I/O domain and do not configure the virtual disk multipathing (mpgroup). DMP at the guest domain takes care of path management between I/O domains.

      • Install Veritas Dynamic Multipathing (DMP) on I/O domains and the guest domain

        Export DMP node name from each I/O domain to the guest domain. DMP at the guest domain takes care of path management between I/O domains.

        I/O Fencing cannot be configured with VCS on the guest domain when DMP is configured on both I/O domains and guest domain.

  5. Install VCS on the guest domain.

    See the Veritas Cluster Server Installation Guide for details.

  6. Configure the application service group.

    See the Veritas Cluster Server Administrator's Guide and Veritas Cluster Server Bundled Agents Reference Guide for details.

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