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Thanks to the massive memory and IPC requirements of Oracle we need to tune
the host OS for Oracle to run. The following are the requirements for Solaris
that should be put in /etc/system:
set noexec_user_stack=1
*
set semsys:seminfo_semmni=100
set semsys:seminfo_semmns=1024
set semsys:seminfo_semmsl=256
set semsys:seminfo_semvmx=32767
*
set shmsys:shminfo_shmmax=4294967295
set shmsys:shminfo_shmmin=1
set shmsys:shminfo_shmmni=100
set shmsys:shminfo_shmseg=10
The above values are the Oracle Installer required minimum values.
They are, by definition, tunables and therefore can be tweeked upwards
for your enviroment but it is not recommended unless you are fully
aware of all the possible side effects in doing so.
2005-02-10