Minimum Kernel Parameter Settings for Oracle Database 19c Installation - Redhat Linux

 

For Oracle Database kernel parameter and shell limit values

Parameter	Value	File
semmsl semmns semopm semmni	250 32000 100 128	/proc/sys/kernel/sem
shmall	Greater than or equal to the value of shmmax, in pages.	/proc/sys/kernel/shmall
shmmax	Half the size of physical memory in bytes See My Oracle Support Note 567506.1 for additional information about configuring shmmax.	/proc/sys/kernel/shmmax
shmmni	4096	/proc/sys/kernel/shmmni
panic_on_oops	1	/proc/sys/kernel/panic_on_oops
file-max	6815744	/proc/sys/fs/file-max
aio-max-nr	1048576 Note: This value limits concurrent outstanding requests and should be set to avoid I/O subsystem failures.	/proc/sys/fs/aio-max-nr
ip_local_port_range	Minimum: 9000 Maximum: 65500	/proc/sys/net/ipv4/ip_local_port_range
rmem_default	262144	/proc/sys/net/core/rmem_default
rmem_max	4194304	/proc/sys/net/core/rmem_max
wmem_default	262144	/proc/sys/net/core/wmem_default
wmem_max	1048576	/proc/sys/net/core/wmem_max