This section covers only new installations on both the Application and Database servers (if applicable).
In addition to AIX7 default installation setting, install AIX7 with following options:
To ensure that the disk configuration is correct, refer to Disk configuration and the appendix "Storage and IO tuning for AIX/Oracle" in Oracle and AIX for M3 BE 15.1.x Administrator's Guide.
Service pack and technology levels
After BOS installation, upgrade AIX7 to latest recommended Service Pack and Technology Level from https://www-945.ibm.com/support/fixcentral/aix/selectFixes?release=7.1&function=release
Edit AIX7 configuration files
Change system PATH if necessary in /etc/environment.
Change the default value in /etc/security/limits to:
AIX7 base tuning
Run the following commands:
/usr/sbin/chdev -l sys0 -a maxuproc=16384 /usr/sbin/vmo -p -o minperm%=5 (physical RAM <32 GB) /usr/sbin/vmo -p -o minperm%=10 (physical RAM >32 GB but <64 GB) /usr/sbin/vmo -p -o minperm%=20 (physical RAM >64 GB)
Verifying UDP and TCP kernel parameters
Run this command to check your current range for ephemeral ports:
# /usr/sbin/no -a | fgrep ephemeral tcp_ephemeral_low = 32768 tcp_ephemeral_high = 65535 udp_ephemeral_low = 32768 udp_ephemeral_high = 65535
Check permissions on /tmp
Run the command
ls -la /
The permissions on /tmp should be drwxrwxrwt.
If sticky bit (t) is missing, log on as root and run the command
chmod +t /tmp