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Planning and Administering Data Services for Oracle® Solaris Cluster 4.4

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Updated: November 2019
 
 

Enabling Oracle Solaris SMF Services to Run With Oracle Solaris Cluster

The Service Management Facility (SMF) enables you to automatically start and restart SMF services, during a node boot or service failure. SMF facilitates some degree of high availability to the SMF services on a single host. This feature is similar to the Oracle Solaris Cluster Resource Group Manager (RGM), which facilitates high availability and scalability for cluster applications. SMF services and RGM features are complementary to each other.

Oracle Solaris Cluster includes three SMF proxy resource types that can be used to enable SMF services to run with Oracle Solaris Cluster in a failover, multi-master, or scalable configuration. The following are the proxy resource types:

  • SUNW.Proxy_SMF_failover

  • SUNW.Proxy_SMF_multimaster

  • SUNW.Proxy_SMF_scalable

The SMF proxy resource types enables you to encapsulate a set of interrelated SMF services into a single resource, SMF proxy resource to be managed by Oracle Solaris Cluster. In this feature, SMF manages the availability of SMF services on a single node. Oracle Solaris Cluster provides cluster-wide high availability and scalability of the SMF services.

You can use the SMF proxy resource types to integrate your own SMF controlled services into Oracle Solaris Cluster so that these services have cluster-wide service availability without you rewriting callback methods or service manifest. After you integrate the SMF service into the SMF proxy resource, the SMF service is no longer managed by the default restarter. The restarter that is delegated by Oracle Solaris Cluster manages the SMF service.

SMF proxy resources are identical to other resources, with no restriction on their usage. For example, an SMF proxy resource can be grouped with other resources into a resource group. SMF proxy resources can be created and managed the same way as other resources. An SMF proxy resource differs from other resources in one way. When you create a resource of any of the SMF proxy resource types, you need to specify the extension property Proxied_service_instances. You must include information about the SMF services to be proxied by the SMF resource. The extension property's value is the path to a file that contains all the proxied SMF services. Each line in the file is dedicated to one SMF service and specifies svc fmri, path of the corresponding service manifest file.

For example, if the resource has to manage two services, restarter_svc_test_1:default and restarter_svc_test_2:default, the file should include the following two lines:

<svc:/system/cluster/restarter_svc_test_1:default>,</var/svc/manifest/system/cluster/
restarter_svc_test_1.xml>
<svc:/system/cluster/restarter_svc_test_2:default>,</var/svc/manifest/system/cluster/
restarter_svc_test_2.xml>

The services that are encapsulated under an SMF proxy resource can reside in the global cluster. All the services under the same proxy resource must be in the same zone.


Caution

Caution  -  Do not use SMF svcadm for disabling or enabling SMF services that are encapsulated in a proxy resource. Do not change the properties of the SMF services (in the SMF repository) that are encapsulated in a proxy resource.