The background processes required for RAC are given as follows:
i. ACMS— Atomic C ntrolfile to Memory Service
ii. GTXO-j— Global Transaction Process
iii. LMON— Global Enqueue Service Monitor
iv. LMD— Global Enqueue Service Daemon
v. LMS— Global Cache Service Process
vi. LCKO— Instance Enqueue Process
vii. RMSn — Oracle RAC Management Processes
viii. RSMN— Remote Slave Monitor.