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PGA relation to SGA and OS physical memory

edited Apr 24, 2012 3:20PM in Database Administration (MOSC) 6 commentsAnswered
What is the relationship of PGA to SGA and OS physical memory? If I have a solaris 10 server with 16G physical memory, and sga size of about 1.1 G. The total database size is about 530G. What should the PGA be sized for? Is the SGA 1.1G could be too small? How could SGA be sized? Currently, during a busy time, the CPU kernal can be as high as 60% and sometimes user 70%. As of right now, PGA_AGGREGATE_TARGET is set at 30M. I am not using the sga_target and sga_max_size yet on this one. Please advice. Thank you

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