PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.2 (for Linux)

2.2.2 Cluster fail-over when entire transfer routes fails

While operating a cluster, if every single transfer route fails for a particular virtual interface, a cluster can switchover to the other cluster. With this capability, the system can be recovered, without administrator's interference, by performing switchover within the cluster when detecting failures in the entire transfer route. Cluster fail-over is enabled in the initial setup for duplex transfer route operation in Fast switching mode, NIC switching mode. This function is automatically configured when the cluster definition is defined.

Figure 2.13 shows an example of fail-over to node B when communication is disabled via both eth0 and eth1 bundled with virtual interface sha0 on node A.

The following is an example of Fast switching mode and this applies to NIC switching mode as well.

[Figure 2.13 Cluster failover due to line fault]