Appendix B: How System Platform High
Availability Failover works
Ping targets
System Platform High Availability Failover uses a node scoring to decide which node resources should
run in each particular situation. Every node uses the following 3 ping targets:
1. Default network gateway as a public ping target.
2. eth0 network interface of the peer.
3. eth2 network interface of the peer.
Every successful ping result gives a machine the same score amount for every ping target. Therefore, if
both machines can reach all the 3 ping targets, they both have the same score and resources run on the
preferred node. The following image depicts the overview of the machines with their 3 ping targets:
As a consequence of ping targets, one of the following things may happen:
Installing and Configuring Avaya Aura
™
System Platform April 2010 95
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