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HP Cluster Software manual Installing HP 3PAR Command Line Interface CLI

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to one of the storage systems. However, a connection to either storage system is not necessary for the node to act as a tiebreaker.

•SAN fabrics can be extended to allow array-based data replication. See the HP StorageWorks SAN Design Reference Guide and the HP 3PAR Remote Copy Users Guide for supported SAN extension configuration and instructions on setting up your HP 3PAR Remote Copy environment.

Installing the multipath software

You must use supported multipath software to take advantage of the I/O path failover feature. Install the multipath software on the cluster system before connecting the system to the second I/O path. For more information on installing the multipath software, see 3PAR Windows Implementation Guide located at: www.hp.com/go/saw.

Installing and configuring the JRE

To install the product license using the HP AutoPass GUI, you must first install the JRE. See the CLX SPOCK website for the supported JRE versions.

NOTE: This step is required only if you want to use the AutoPass GUI to manage license keys. If you do not install the JRE, you can use the HP 3PAR Cluster Extension registration tool to install license keys. For more information about using the registration tool, see “Using the HP 3PAR Cluster Extension registration tool ” (page 23).

Installing HP 3PAR Command Line Interface (CLI)

HP 3PAR Cluster Extension communicates with the HP 3PAR storage system using the HP 3PAR Command Line Interface (CLI). Ensure that you install and test the supported version of HP 3PAR Command Line Interface (CLI) on all cluster nodes where Cluster Extension software will be installed.

For more information, see 3PAR CLI Administrator’s Manual located at www.hp.com/go/saw.

NOTE: While installing or upgrading HP 3PAR Command Line Interface (CLI) on Windows, the environment variable Path will be updated with the CLI install directory. Occasionally, this change does not take effect and you may have to re-login to Windows. HP recommends that you test the CLI commands after you install or upgrade HP 3PAR CLI and try to re-login, if the commands fail due to the binary not found error.

Configuring the HP 3PAR storage system

For detailed information on configuring the HP 3PAR storage system, see the 3PAR Management Console User Guide or the 3PAR CLI Administrator’s Manual. You can also consult your HP service representative for further assistance, including help with creating a geographically dispersed cluster environment.

Creating hosts and setting host persona

Before you can assign disk storage to a cluster node, you must create a host entry for the locally connected server/node on each HP 3PAR storage system. Each HP 3PAR storage system port connecting to a host HBA port through a fabric or direct connection must be set to the correct host persona. Host personas are a set of behaviors that permit hosts connected to FC ports on the HP 3PAR storage systems to deviate from the default host behavior. Host personas are tied to the host name and identified by the host persona number. Use the HP 3PAR CLI commands or the HP 3PAR Management Console to display, create, modify, and remove host personas. For more information, see the HP 3PAR CLI Administrator’s Manual or the HP 3PAR Management Console Online Help.

HP recommends that you run HP 3PAR Host Explorer software on hosts connected to HP 3PAR storage systems. When a host is created on a HP 3PAR storage system, unassigned WWNs are presented to the storage system. If the Host Explorer agents are not running on the attached hosts, the storage system cannot determine the WWNs assigned to the hosts, and you must manually

Pre-installation procedures

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HP Cluster Software manual Installing HP 3PAR Command Line Interface CLI, Configuring the HP 3PAR storage system
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Cluster Software specifications

HP Cluster Software is a robust solution designed to enhance the reliability, availability, and scalability of computing environments in enterprise settings. This software is instrumental in managing clusters of servers, providing a unified framework that allows for efficient resource management, workload distribution, and high availability.

One of the main features of HP Cluster Software is its ability to deliver high availability through failover mechanisms. In the event of a hardware or software failure, the software automatically shifts workloads from the affected node to a standby node within the cluster, minimizing downtime. This feature is critical for organizations that require continuous access to their data and applications.

Scalability is another significant characteristic of HP Cluster Software. Organizations can easily add or remove nodes from the cluster without disrupting ongoing operations. This flexibility ensures that enterprises can adapt to changing workloads and resource demands efficiently, making it suitable for environments ranging from small businesses to large data centers.

Load balancing is a key technology employed by HP Cluster Software. It intelligently distributes workloads across the available nodes, optimizing resource utilization and ensuring that no single server is overwhelmed. By balancing the load, organizations can achieve better performance and enhance the response times of applications, which are essential for user satisfaction.

HP Cluster Software supports various clustering topologies, including active-active and active-passive configurations. This versatility allows organizations to choose the architecture that best fits their operational requirements. Additionally, the software integrates seamlessly with various HP and third-party hardware and software solutions, thus providing a holistic environment for managing IT resources.

Moreover, HP Cluster Software offers centralized management tools that simplify cluster administration. Administrators can monitor cluster performance, manage workloads, and configure settings all from a single interface. This ease of use reduces the complexity often associated with managing large clusters and empowers IT teams to respond rapidly to issues.

In summary, HP Cluster Software is an essential tool for organizations looking to enhance their IT infrastructure's availability, reliability, and performance. With its failover capabilities, scalability options, load balancing technology, and centralized management features, it stands out as a comprehensive solution for modern computing challenges.