Database Administration (MOSC)

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kernel vs ulimit

edited Aug 26, 2014 5:02AM in Database Administration (MOSC) 7 commentsAnswered
1.Can some one please clarify what are these memory and how these are related to our Oracle databases.The values mentioned below are in bytes.Also below values is applicable to all database Instances runnig on server at a time or for each database alone.

kernel.shmall = 7340032<---meaning?
kernel.shmmni = 4096<------meaning?
kernel.shmmax = 4294967295<----meaning
kernel.sem = 250 32000 100 128<---meaning
kernel.shmmax = 4294967295<--meaning.

2.Also please let me know why ulimit parameter at Os level it is set and what is the relation between kernel level and ulimit parameters.

3.Also what is the relation between ulimit parameters and oracle Instance.


Das

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