cell smart incremental backup等待事件

This is an Exadata wait event that occurs when doing incremental level 1 backups via RMAN. Exadata automatically offloads RMAN backup activities to the storage cells. Solutions Offloading the RMAN backup activity to the storage cells within an Exadata machine is probably a good thing, so there may no tuning required. If RMAN backups are affecting performance, scheduling them at different times may be appropriate.