Cluster and package status in MC service guard cluster

Below table will explain what is the cluster and package status (required state) at the time of any cluster configuration change and package configuration change. Hope this will help for system admins.


Task / Change in cluster config Cluster status / Required Cluster State
Add a new node. All cluster nodes must be running.
Delete an existing node A node can be deleted even if it is down or unreachable.
Change maximum configure packages Cluster must not be running
Change timing parameters Cluster must not be running
Change cluster lock configuration Cluster must not be running
Change serial heartbeat configuration Cluster must not be running.
Change IP address for heartbeats Cluster must not be running
Change addresses of monitored subnets Cluster must not be running.




Package Modification Package status / Package required state
Add a new package Other packages can be running.
Remove a package. Package must be halted. Cluster can be running.
Add a new node. Package(s) may be running.
Remove a node. Package(s) may be running on different nodes.
Add/remove a new service process Package must be halted.
Add/remove a new subnet.  Package must be halted. / Cluster may need halting if subnet  is new to the cluster
Add/remove a new EMS resource Package must be halted. / Cluster may need halting if EMS resource is new to the cluster.
Changes to the run/halt script contents Recommended that package be halted to avoid any timing problems while running the script.
Script timeouts Package may be running.
Service timeouts Package must be halted.
Failfast parameters Package must be halted.
Auto_Run Package may be running.
Local LAN failover Package may be running.
Change node adoption order Package may be running.

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