B.2. Azioni

Tutti i Resource Agent OCF devono implementare le seguenti azioni

Tabella B.1. Azioni richieste per gli agenti OCF

Azione	Descrizione	Istruzioni
`start`	Avvia la risorsa	Return 0 on success and an appropriate error code otherwise. Must not report success until the resource is fully active.
`stop`	Ferma la risorsa	Return 0 on success and an appropriate error code otherwise. Must not report success until the resource is fully stopped.
`monitor`	Check the resource’s state	Exit 0 if the resource is running, 7 if it is stopped, and anything else if it is failed. NOTA: Lo script di monitor dovrebbe controllare lo stato della risorsa solo sulla macchina locale.
`meta-data`	Descrive la risorsa	Provide information about this resource as an XML snippet. Exit with 0. NOTE: This is not performed as root.
`validate-all`	Verify the supplied parameters	Exit with 0 if parameters are valid, 2 if not valid, 6 if resource is not configured.

Requisiti aggiuntivi (che non fanno parte delle specifiche OCF) sono associati ad agenti che vengono utilizzati nell'ambito delle risorse clone e multi-state.

Tabella B.2. Azioni facoltative per gli agent OCF

Azione	Descrizione	Istruzioni
`promote`	Promote the local instance of a multi-state resource to the master/primary state.	Return 0 on success
`demote`	Demote the local instance of a multi-state resource to the slave/secondary state.	Return 0 on success
`notify`	Used by the cluster to send the agent pre and post notification events telling the resource what has happened and will happen.	Must not fail. Must exit with 0

One action specified in the OCF specs is not currently used by the cluster:

recover - a variant of the start action, this should try to recover a resource locally.

Remember to use ocf-tester to verify that your new agent complies with the OCF standard properly.