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What Is The Job Of Smon And Pmon Processes? |
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Answer» SMON : System Monitor Process - Performs recovery after instance failure, MONITORS temporary segments and EXTENTS; cleans temp segments, coalesces free space (MANDATORY process for DB and starts by default). PMON : Process Monitor - Recovers failed process resources. In Shared Server architecture, monitors and retarts any failed DISPATCHER or server proceses (mandatory process for DB and starts by default). [oracle@hostname ~]$ ps -ef |grep -e pmon -e smon |grep -v greporacle 6755 1 0 12:59 ? 00:00:05 ora_pmon_DB1_SID oracle 6779 1 0 12:59 ? 00:00:06 ora_smon_DB1_SID. SMON : System Monitor Process - Performs recovery after instance failure, monitors temporary segments and extents; cleans temp segments, coalesces free space (mandatory process for DB and starts by default). PMON : Process Monitor - Recovers failed process resources. In Shared Server architecture, monitors and retarts any failed dispatcher or server proceses (mandatory process for DB and starts by default). |
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