Enable the I/O Completion Ports (IOCP)

AIX I/O Completion Port (IOCP) status may be defined, but not enabled. This problem applies to all AIX platforms and may occur after an install or upgrade. .

1. Log in to the server as root.
2. Validate the current IOCP status by running “lsdev -Cc iocp. 
   lsdev returns one of these messages:

   • If the message reads iocp0 Defined  I/O Completion Ports, continue to the next step. 
   • If the message readsiocp0 Available  I/O Completion Ports, there is no need to continue.
3. Issue the following command: smitty  iocp.
4. Select Configure Defined I/O Completion Ports. 
   When processing is complete, output should read iocp0 Available.
5. Press F10 to exit.
6. Run lsdev -Cc iocp.
   Output should read iocp0 Available  I/O Completion Ports.