| General |
View cluster information such as: - System view – determines how the logical cluster users view Cluster
Edition, whether as an entire cluster, or as individual instances.
- Automatically start logical cluster – determines whether you want the logical cluster started
when the cluster starts.
- Failover mode – select either instance or group to specify how to bring instances online as a group or individually.
- Fail to any – specifies whether any instance, or only a specific instance, can be a failover resource.
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Down routing mode – specifies how client
connections are routed if the logical cluster designated by the
routing rule is unavailable.
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system – sends
unroutable connections to the system logical cluster.
-
open – sends unroutable
connections to the open logical cluster.
-
disconnect – disconnects
unroutable connections.
- Login distribution mode – lets you specify how connections are distributed in logical clusters with multiple instances. The login distribution mode does not affect single-instance logical clusters.
- affinity – specifies that the instance accepting a connection retains it as long as the target logical cluster is running on that instance.
If the load profile specifies a load threshold, and the load on the instance is too high, the workload manager redirects the connection to the least loaded instance in a logical cluster.
If the target logical cluster is not running on the instance, the workload manager redirects the connection to the least loaded instance in a logical cluster.
- round-robin – specifies that incoming connections are distributed in a round-robin fashion among the instances hosting a logical cluster. For example, if “SalesLC” is running on “ase1” and “ase2”, the workload manager sends the first connection to “ase1,” the next to “ase2”, and so on. Load scores are not included in the algorithm.
- Logical cluster roles – indicates whether this logical cluster assumes an open role, meaning
that all connections that are not routed to a logical cluster via an explicit
routing rule are routed to the current open logical cluster. When
you create a new cluster, the system logical cluster is automatically
designated the open logical cluster. You can reassign the open role
to another logical cluster. However, only one open logical cluster
can exist per physical cluster.
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| Base Instances |
List base instance names, their identification numbers, and their current state.
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| Failover Instances |
List failover instance names, their identification numbers, their current state, and the failover to which they belong.
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| Routes |
List routing applications, logins, and aliases that are associated with the logical cluster.
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| Load Profile |
Change the load profile assigned to the logical cluster or view the current load profile information such as:- Metric weights assigned to the selected load profile
- Minimum load score
- Login redirection
- Dynamic connection migration
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