Data Block Buffer transferred across the instances in Oracle RAC During cache fusion

How Data Block Buffer transferred across the instances in Oracle RAC During cache fusion

• Block Server Process will rollback uncommited transaction and re-construct read consistent image of block and send across to instance
• Block Server Process will be pulling read consistent image of data from undo segment and send to instance
• Block Server Process initiate check point and flush dirty buffers to disk and pull out new image of block and send to instance
• Block Server Process will be fetching data block from disk because same instance doesn't have image of data block
• Block Server Process will be making new block image using Log Buffer's DML statement