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phaul's avatar
phaul
Level 4
12 years ago

VCS failover service group

Hi Guys,

 

I have some inquiry regarding VCS failover service group.

This example is for 3 node cluster:

 

There are two service groups in <clustername> cluster, app1_SG running on node_1 and app2_SG running on node_2. In any failure, these two service groups will be switching to node_3. However, both service groups could not be running on the same node, i.e. while app1_SG switched to node_3, then app2_SG could not switch to node_3 and vice versa.

Is there a configuration on how to configure this setup?

Any comments will appreciate.

 

Thanks.

business continuity
Cluster Server
Configuring
Solaris
Tip-How to

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  • sajith_cr's avatar
    sajith_cr
    Level 4
    12 years ago

    See offline local group dependency in Service group dependency configurations section in VCS admin guide.

  • Wally_Heim's avatar
    Wally_Heim
    Level 6
    12 years ago

    Just to show a difference, in Windows we would use workload managment by setting system "Limits" and service group "Prerequisites".  We've used the exclusivily for Active/Actice Exhange clusters were it is impossible to run 2 virtual Exchange servers on the same physical node without causing data corruption.

    I'm sure the same approach will work for other platforms as well.

    -Wally