Owner manual

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.