> # Server: Configuration: Coherence

> Configuration Options Related Tasks

> Use this page to configure this server instance as a Coherence cluster member by selecting the Coherence cluster that it belongs to. After this configuration is saved, you can configure Coherence cluster member properties as required.

> #### Configuration Options

> Name | Description
> --- | ---
> Unicast Listen Address | The IP address for the Coherence unicast listener. MBean Attribute: `CoherenceMemberConfigMBean.UnicastListenAddress` Changes take effect after you redeploy the module or restart the server.
> Unicast Listen Port | The port for the Coherence unicast listener. A value of 0 indicates that the unicast listen port value will be assigned automatically to an ephemeral port. MBean Attribute: `CoherenceMemberConfigMBean.UnicastListenPort` Minimum value: `0` Maximum value: `65535`

> Changes take effect after you redeploy the module or restart the server.

> Unicast Port Auto Adjust | Specifies whether the unicast port will be automatically incremented if the port cannot be bound because it is already in use. MBean Attribute: `CoherenceMemberConfigMBean.UnicastPortAutoAdjust` Changes take effect after you redeploy the module or restart the server.
> Local Storage Enabled | Specifies whether or not this member will contribute storage to the Coherence cluster i.e. maintain partitions. This attribute is used only when the WebLogic Server is not part of a WLS Cluster. MBean Attribute: `CoherenceMemberConfigMBean.LocalStorageEnabled`

> Changes take effect after you redeploy the module or restart the server.

> Coherence Web Local Storage Enabled | Specifies whether Local Storage is enabled for the Coherence Web cluster member MBean Attribute: `CoherenceMemberConfigMBean.CoherenceWebLocalStorageEnabled` Changes take effect after you redeploy the module or restart the server.
> Coherence Web Federated Storage Enabled | Specifies whether Federated Cache Storage is enabled for the Coherence Web cluster member MBean Attribute: `CoherenceMemberConfigMBean.CoherenceWebFederatedStorageEnabled` Changes take effect after you redeploy the module or restart the server.
> Site Name | Specifies the name of the geographic site where this member is hosted. MBean Attribute: `CoherenceMemberConfigMBean.SiteName` Changes take effect after you redeploy the module or restart the server.
> Rack Name | Specifies the location within a geographic site where this member is hosted. MBean Attribute: `CoherenceMemberConfigMBean.RackName` Changes take effect after you redeploy the module or restart the server.
> Role Name | Specifies a name used to logically group similar members. MBean Attribute: `CoherenceMemberConfigMBean.RoleName` Changes take effect after you redeploy the module or restart the server.
> Coherence Cluster | The system-level Coherence cluster resource associated with this server. MBean Attribute: `ServerMBean.CoherenceClusterSystemResource` Changes take effect after you redeploy the module or restart the server.

> Related Tasks

> - Configure and deploy Coherence deployment tiers
> - Configure and deploy Coherence on a single-server cluster
> - Configure Coherence clusters
> - Create Coherence clusters