The ocssd process is spawned bythe cssdagent process. It runs in both vendor clusterware and non-vendor clusterware environments. OCSSD's primary job is inter-node healthmonitoring and RDBMS instance endpoint discovery. The health monitoringincludes a network heartbeat and a disk heartbeat (to the voting files). The ocssd process can also evict a node afterescalation of a member kill from a client (such as a database LMON process).