Advantages of MultiNICB and IPMultiNICB
-
Faster failover: MultiNICB can detect an interface failure and migrate the IP addresses in a few seconds. The "internal failover" is many times faster than that of MultiNICA.
-
Support for single and multiple interfaces: MultiNICB and IPMultiNICB can be used for single and multiple interfaces. This eliminates the need for separate pairs of NIC and IP, or MultiNICA and IPMultiNIC, for these interfaces.
-
Simplified configuration: MultiNICB and IPMultiNICB simplify resource configuration in the main.cf because these agents do not configure or unconfigure the physical interfaces. The configuration does not contain IP addresses for the physical interfaces.
-
Active/active configuration: MultiNICB and IPMultiNICB support active/active configuration for multiple interfaces on the same IP subnet. This means that all interfaces under a particular MultiNICB resource are always configured and have "test" IP addresses on them. This promotes speedy failover.
-
(Jun says no failback on AIX) Failback support: MultiNICB and IPMultiNICB support failback of IP addresses. If the original interface of an IP address is repaired, the IP address is failed back to the original interface. You can enable or disable failback for every MultiNICB resource.
-
Support for manual switching: MultiNICB and IPMultiNICB support manual movement of IP addresses between working interfaces under the same MultiNICB resource. This can be performed without changing the VCS configuration or disabling resources.
