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Tuesday, December 31, 2013

Exadata Wait Event - Cell Multiblock Physical Read


cell multiblock physical read

This wait event is equivalent to db file scattered read for a cell. The P1 , P2 , and P3 columns in the V$SESSION_WAIT view for this event identify the cell hash number, disk hash number, and the total number of bytes processed during the I/O read operation.


cell multiblock physical read ==> Equivalent to db file scattered read for a cell

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