In this configuration, two nodes are on standby for each other.
The following figure shows the node configuration of this type.
Node A is an active node and Node B is a standby node. Node B is on standby in case error occurs with Node A.
On the other hand, Node B is an active node and Node A is a standby node. Node A is on standby in case error occurs with Node B.
The dual node mutual standby configuration has the following features and precautions:
Features
Both nodes can be used as active nodes during regular operation.
Multiple subsystems can run on both nodes. The two nodes can run a total of up to nine subsystems (numbered 1 through to 9). Subsystem number 0 cannot be used in cluster operation.
Precautions
If jobs are processed separately on the two active nodes, then all the jobs will have to be processed in a single node after failover occurs. This will reduce the level of performance available after the failover.
See
To register different resources for each subsystem in a 1:1 active/standby configuration environment, follow the dual node mutual standby configuration procedure.
