Background Processes in Oracle

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{\*\generator Msftedit 5.41.21.2509;}\viewkind4\uc1\pard\fi720\li360\lang1033\b\f0\fs22 Background Process:\b0 \par
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\pard\fi-360\li1440\tx1440\f1\'b7\tab\f0 Database writer (DBWR): Writes modified blocks from database buffer cache to the datafile.\par
\pard\fi-360\li1440\f1\'b7\tab\f0 Log Writer (LGWR): Writes redo log entries to disk.\par
\f1\'b7\tab\f0 Check Point: At specific times all modified databases buffers in the SGA are written to the data files by DBWR. This event is called Checkpoint.\par
\f1\'b7\tab\f0 System Monitor (SMON): Performs instance recovery at instance startup\par
\f1\'b7\tab\f0 Process Monitor (PMON): Performs process recovery when user process fails\par
\f1\'b7\tab\f0 Archiver (ARCH): Copies on line redo log files to archival storage when they are full\par
\f1\'b7\tab\f0 Dispatcher: For multi threaded server for each request one dispatcher process\par
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\pard\sa200\sl276\slmult1 Lock: For parallel server mode for inter instance locking\lang9\f2\fs28\par
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