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Shivam_HCL's avatar
Shivam_HCL
Level 3
12 years ago

Service group does not fail over on another node on force power down.

VCS 6.0.1 Hi i have configured a two node cluster with local storage and running two service groups. They both running fine and i am able to switch over them to any node on the cluster but when i f...
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  • mikebounds's avatar
    mikebounds
    12 years ago

    Just missed your email - so I can now see you have only defined one heartbeat and this means VCS cannot detect between eth1 failure and system failure and therefore it will not failover any service groups (apart from ClusterService), so you need to have at least 2 heartbeats (which need to be independent in a live cluster - i.e not a dual-port card, but this is ok for testing)

    Mike

mikebounds's avatar
mikebounds
Level 6
12 years ago

If your 2 heartbeats are independent then they should never fail at the same time and therefore if a node sees 2 heartbeat links go down at the same time, then it assumes node has gone down as if your heartbeats are truely independent then it is very unlikley they would fail at the same time.  With only one heartbeat when a node sees it is gone, it has noway of telling if the link went down (like NIC or switch failure) or if the node went down.  This is why when you only have one link, the cluster goes in Jeopardy.

Mike