Enabling I/O Completion Port (IOCP) settings

I/O completion ports is a mechanism to handle multiple asynchronous I/O requests in a program.

About this task

You must perform the following steps as the root user.

Run the following command to check the IOCP status.
```
/usr/sbin/lsdev | grep iocp
```
If this command returns the result, Available, then you do not need to complete any more steps in this task.

If the command returns something other than the result Available, for example, Defined, then complete the remaining steps in this task.
Log in as root user and run the following command:
```
smitty iocp
```
Select Change/Show Characteristics of I/O Completion Ports.
Change State to be configured at system restart from Defined to Available.
Restart the server by using the following command:
```
shutdown –Fr
```
Confirm that the IOCP status is Available by using the following command:
```
lsdev | grep iocp
```
iocp0 Available I/O Completion Ports