Setting Options And Parameters - IBM N Series Hardware Manual

After finishing setup, the system prompts you to reboot to make the new settings effective.
Attention: If the partner is a VIF, you must use the VIF interface name.
Configuring dedicated interfaces with setup
A dedicated network interface for the local controller whether the controller is in takeover
mode. A network interface performs this role if it has a local IP address but not a partner IP
address. You can assign this role by using the partner option of the ifconfig command.
Example 7-6 shows how to configure a dedicated interface for the N series.
Example 7-6 Configuring a dedicated interface
Please enter the IP address for Network Interface e0b []: 9.11.218.160
Please enter the netmask for Network Interface e0b [255.0.0.0]: 255.0.0.0
Should interface e0b take over a partner IP address during failover? [n]:n
Configuring standby interfaces with setup
If the partner node fails, the system will activate the partner IP addresses that have been
previously assigned as takeover IP address. When the file server is not in takeover mode, the
partner IP address is not active. A network interface performs this role if it does not have a
local IP address but a partner IP address. You can assign this role by using the partner
option of the ifconfig command.
Example 7-7 shows how to configure a standby network interface for the partner. You do not
configure any IP addresses for the e0b interface.
Example 7-7 Configuring standby network interface
Please enter the IP address for Network Interface e0b []:
Should interface e0b take over a partner IP address during failover? [n]: y
Please enter the IPv4 address or interface name to be taken over by e0b []: e0b

7.3.6 Setting options and parameters

Some options must be the same on both nodes in the HA pair configuration. Others can be
different, and still others are affected by failover events.
In an HA pair configuration, options can be one of the following types:
Options that must be the same on both nodes for the HA pair configuration to function
correctly.
Options that might be overwritten on the node that is failing over. These options must be
the same on both nodes to avoid losing system state after a failover.
Options that need to be the same on both nodes so that system behavior does not change
during failover.
Options that can be different on each node.
Tip: You can determine whether an option must be the same from the comments that
accompany the option value when you enter the option command. If there are no
comments, the option can be different on each node.
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IBM System Storage N series Hardware Guide