transferring data between network clients and Backup system, and a bonded subnet on the
1GbE ports for management of the appliance on a 1GbE subnet.
•
Users who do not have a DHCP-enabled 1GbE network, or who do not want to connect to
LAN port 1 must create and activate a network configuration file before their system can
become active on the network. This network configuration file may use any available Ethernet
port, but one must always be connected for access to the StoreOnce Management Console
remotely.
Network bonding modes
Each pair of network ports on the appliance can be configured either on separate subnets or in a
bond with each other (1GbE and 10GbE ports cannot be bonded together).
Three bonding modes are supported:
•
Mode 1 (Active/Backup)
This is the most simple bonding mode; it allows network traffic via one active port only and
requires no specific extra switch configuration. It is recommended for simple network
connections, if the active network link fails then traffic moves to the backup port.
•
Mode 4 (IEEE 802.3ad Dynamic Link Aggregation)
This bonding mode is also known as LACP and requires a special external switch configuration.
It provides a link aggregation solution, increasing the bond physical bandwidth but can only
work if all the ports in the bond are connected to one switch or switches joined by an interswitch
link. It is recommended when :
◦
The customer wants to increase throughput to the StoreOnce appliance
◦
Trunks between switches on the customer network already use LACP mode
The LACP protocol only works when it is configured on both the server and StoreOnce end
of the connection. Please refer to your switch documentation for information on LACP
configuration.
•
Mode 6 (Active Load Balancing)
This mode provides a load balance solution. It does not require specific external switch
configuration, but does require the switch to allow ARP negotiation. It can be used in a 2–switch
configuration.
This configuration is generally recommended for backup data performance and also for
resiliency of both data and management network connectivity. However, in some environments
ARP packet negotiation may be disabled within the network infrastructure, so this mode may
not be appropriate.
NOTE:
It should be noted that when using bonded ports the full performance of both links will
only be realized if multiple host servers are providing data, otherwise data will still use only one
network path from the single server.
The network configuration wizard
The wizard will guide you through the configuration of network settings on your StoreOnce Backup
system.
If you wish to make additions or modifications to an existing network configuration without having
to reconfigure all settings then use the
net modify
or
net add
CLI commands instead, as
described in the HP StoreOnce Backup system CLI Reference guide.
The wizard consists of the following steps:
18
Network configuration
