Data Services API

Sun Cluster software includes an Application Programming Interface (API) permitting existing crash-tolerant data services to be made highly available under the Sun Cluster HA framework. Data services register methods (programs) that are called back by the HA framework at certain key points of cluster reconfigurations. Utilities are provided to permit data service methods to query the state of the Sun Cluster configuration and to initiate takeovers. Additional utilities make it convenient for a data service method to run a program while holding a file lock, run a program under a timeout, or automatically restart a program if it dies.

For more information on the data services API, refer to the Sun Cluster 2.2 API Developer's Guide.