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Monitoring the gateway, Show cluster global brief command – HP VMA-series Memory Arrays User Manual

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130

HP VMA SAN Gateway User’s Guide

AM456-9026A

Master Node: The master node is the primary node for managing the HP VMA SAN Gateway
pair. The cluster management VIP is assigned to the master node.

Secondary Node: The second node configured in the cluster is automatically designated as the
secondary node. The secondary node is an active node that performs services. If the master
node fails, the secondary node replaces it and becomes the master node, and cluster
management traffic is automatically redirected to the new master node.

By using the cluster management VIP, you ensure a reliable connection to the current master node

for all management activities.

Monitoring the Gateway

You can monitor the nodes in a HP VMA SAN Gateway redundant pair using the

show cluster

commands in the CLI, or from the Monitor pages in the HP VMA Web Interface.

A very useful command is

show cluster global brief

, which may be used on any HP VMA

SAN Gateway in the redundant pair. For descriptions of the

show cluster

commands and other

management commands, see

Cluster Configuration and Show Commands

on page 180.

In the HP VMA Web Interface, the Administration > Cluster Admin > Gateways page lists all of

the HP VMA SAN Gateway nodes in the redundant pair, their status, and role (master or secondary).

Using controls in the Gateways page, you may view additional information, stop the HP VMA SAN

Gateway, or reboot it. If you stop a HP VMA SAN Gateway using this page, it can only be restored

to service by using the CLI. For more information, see

Viewing Gateway Node Details

on page 66.

Show Cluster Global Brief Command

The

show cluster global brief

command displays the cluster ID and cluster name, the

management IP address and netmask, the cluster master interface, and the number of HP VMA SAN

Gateways (nodes) in the management group.

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