Configuring a Redundant Pair of VMA SAN Gateways - Process Guide

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Arrays. vCLUSTER is a gateway management feature allowing management of multiple gateways
from a single gateway. With the initial release of vCLUSTER and with G5.0.2 gateway software,
vCLUSTER network and gateway management were performed on different Ethernet ports. With
redundant gateways and G5.1.0 gateway software, vCLUSTER network and gateway management
must use the same physical Ethernet ports on the gateway. For redundant gateways using G5.1.0
gateway software OE, this will be the physical eth-1 and eth-2 Ethernet ports bonded together to be
eth-0. A VLAN will also be established for redirection of management functions between the paired
gateways.
Add and Configure Ethernet Switches
For a reliable network configuration with redundant pairs of VMA SAN Gateways, it is recommended
that two Ethernet switches which support link aggregation (802.1ax) and VLAN (802.1Q)
be used for increased network availability. The eth1 and eth2 Ethernet ports of each primary and
secondary VMA SAN Gateway to be paired will be connected to the Ethernet switches as shown in
Figure 6 below. At different points in the pairing process, the Ethernet ports, eth1 and eth2, of both
gateways will also be bonded and will become eth0 which will be used for inter-gateway
communication and redirection of management requests on the same physical links.
In addition a VLAN will be configured which will provide for low-latency, low-bandwidth
communication between the connected gateways. The Ethernet switches will need to be configurable
to allow for port bonding and flow of VLAN traffic between the inter-switch links and the bonded eth0
ports.
Figure 6: Reliable Ethernet Configuration for Redundant Pair VMA SAN Gateways
Configure Trunking on Ethernet Switches
Configure inter-switch trunking as desired between the two Ethernet switches used for connection of
the VMA SAN Gateway eth1 and eth2 ports. Inter-switch trunking will need to be configured so that
inter-gateway tagged VLAN traffic can flow between the switches and any intervening switches.