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Chapter 3: Configure Reliable Network with
Primary Gateway
Topics:
Add and Configure Ethernet Switches
Verify and Save Configuration
Configure Trunking and Ethernet Switches
Configure VLAN and Inter-Gateway Communication
Comfigure Primary Gateway to expect Secondary Gateway
Configure Ethernet Port Bonding on Primary Gateway
Configure Inter-Gateway VLAN on Primary Gateway
Configure Management Virtual IP on Primary Gateway
Verify Primary Gateway Network and Array Operation
Save Primary Gateway Configuration
Network configuration and settings required for a redundant pair of gateways are not the same as
for a standalone gateway. For a redundant gateway pair, a more reliable network connection and
configuration will be established. Network settings and configuration for redundant pairs of
gateways are different and may be in conflict with prior Ethernet port and VLAN configuration
settings used previously for standalone gateway deployments.
Note that the vCLUSTER feature, which is used for management of multiple gateways from a master
gateway, is not the same as redundant gateway pairs for highly available data access to VMA 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 5 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, while isolating multi-cast traffic between the paired 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.
(178 pages)
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