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Using Boolean Operators
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- Troubleshooting the HA Configuration
- Common High Availability Configuration Mistakes
- Configuration Issues with RHCS 6
- HA Resource Testing
- Re-Enable NNMi for High Availability after All Cluster Nodes are Unconfigured
- NNMi Does Not Start Correctly Under High Availability
- Changes to NNMi Data are Not Seen after Failover
- nmsdbmgr Does Not Start after High Availability Configuration
- NNMi Runs Correctly on Only One High Availability Cluster Node (Windows)
- Disk Failover Does Not Occur
- Shared Disk is Not Accessible (Windows)
- Shared Disk Does Not Contain Current Data
- Shared Disk Files Are Not Found by the Secondary Node after Failover
- Error: Wrong Number of Arguments
- Resource Hosting Subsystem Process Stops Unexpectedly (Windows Server 2008 R2)
- Product Startup Times Out (Windows MSCS 2008)
- Log Files on the Active Cluster Node Are Not Updating
- Cannot Start the NNMi HA Resource Group on a Particular Cluster Node
NNMi Does Not Start Correctly Under High Availability
When NNMi does not start correctly, it is necessary to debug whether the issue is a hardware issue with the virtual IP address or the disk, or whether the issue is some form of application failure. During this debug process, put the system in maintenance mode without the NORESTART keyword.
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On the active node in the HA cluster, disable HA resource group monitoring by creating the following maintenance file:
- Windows:
%NnmDataDir%\hacluster\<resource_group>\maintenance - Linux:
$NnmDataDir/hacluster/<resource_group>/maintenance
- Windows:
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Start NNMi:
ovstart -
Verify that NNMi started correctly:
ovstatus -cAll NNMi services should show the state RUNNING. If this is not the case, troubleshoot the process that does not start correctly.
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After completing your troubleshooting, delete the maintenance file:
- Windows:
%NnmDataDir%\hacluster\<resource_group>\maintenance - Linux:
$NnmDataDir/hacluster/<resource_group>/maintenance
- Windows:
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