About setting tunable parameters using the installer or a response file

Last published : Jun 11, 2026
You can set non-default product and system tunable parameters using a tunables file. With the file, you can set tunables such as the I/O policy or toggle native multi-pathing. The tunables file passes arguments to the installer script to set tunables. With the file, you can set the tunables for the following operations:
  • When you install, configure, or upgrade systems.
    \# ./installer -tunablesfile tunables_file_name
    See Setting tunables for an installation, configuration, or upgrade.
    • When you apply the tunables file with no other installer-related operations.
    \# ./installer -tunablesfile tunables_file_name -settunables [
    sys1 sys2 ...]
See Setting tunables with no other installer-related operations.
  • When you apply the tunables file with an un-integrated response file.
\# ./installer -responsefile response_file_name -tunablesfile
tunables_file_name
See Setting tunables with an un-integrated response file.
See About response files.
You must select the tunables that you want to use from this guide.
See Tunables value parameter definitions.
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