Database Administration (MOSC)

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What Shmmax memory how do oracle use it

edited May 2, 2013 7:55AM in Database Administration (MOSC) 5 commentsAnswered
Hi all

Total Memory on the server is 132094756KB(125 GB)

Oracle Database Memory as Below

SGA_MAX_SIZE=70GB

PGA_AGGREGATE_TARGET=3GB

DB_CACHE_SIZE=57408 MB  (56 GB)

70GB+3GB+56GB =129GB

Shmmax 68719476736

 1) i just want to confirm that , oracle will take from shmmax  value  what  we have given. not Physical memory where the server have more

2) how to find the max memory the oracle is using

3) In my case we have a performance  issue and we see more memory sort so i want to increase PGA  to 4GB and i do it in my case




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