HP VMA-series Memory Arrays - Manual (Page 42)

42 AM456-9007B Rev 02 HP VMA SAN Gateway Installation and User Guide
The first HP VMA SAN Gateway added to the HP VMA SAN Gateway cluster is
the master node. The master node is the default gateway for all cluster management
tasks. The cluster management VIP directs all cluster management traffic to the
public interface—generally eth1 (or eth0 if a bonded interface is used)—on the
master node. Should the master node fail, the standby node replaces it and becomes
the master node, and cluster management traffic is automatically redirected to the
new master node.
Note: The vCLUSTER roles of master, standby, and normal are with respect to
cluster nodes for configuration management. The pairing of HP VMA SAN
Gateway nodes for VMA Arrays in a High Availability (HA) configuration is not
based on these cluster roles, but by physical cabling.
For example, it is possible in a vCLUSTER to have an HA pair of Gateways for a
set of Arrays where neither node is a vCLUSTER master or standby. vSHARE
LUNs are defined and saved within the Arrays themselves. vSHARE LUN export
records are, however, managed and stored within the vCLUSTER configuration
database owned by the master node.
Master Node Parameters
All global cluster parameters are defined on the master node and are automatically
inherited by each additional node added to the cluster.
Please have all of the following information available for configuring the first HP
VMA SAN Gateway, the master node, in the cluster:
Public interface name This specifies the Ethernet port that is used for
cluster management. If only a single Ethernet
cable will be used to connect the Gateway node,
then eth1 should be used. If both eth1 and eth2
will be cabled to the network, then they should be
bonded as eth0, and eth0 should be used as the
public interface.
Public interface IP address
& netmask The interface IP address and netmask. (Note:
DHCP is not recommended.)
Default gateway Recommended for access to the cluster from
outside of its local network.
Global default gateway Enable or disable. HP recommends that you
enable the global default gateway.
Table 3.1 HP VMA SAN Gateway Settings