IOCP in defined state in AIX LPAR

 How to enable/configure  IOCP on AIX LPAR without rebooting AIX LPAR

sometime AIX admin come across situation where oracle/db2/SAP team request to enable defined IOCP port to available.

Also make sure that following fileset are installed on AIX LPAR

#lslpp -l bos.iocp.rte

Fileset Level State Description ---------------------------------------------------------------------------- Path: /usr/lib/objrepos bos.iocp.rte 5.3.9.0 APPLIED I/O Completion Ports API Path: /etc/objrepos bos.iocp.rte 5.3.0.50 COMMITTED I/O Completion Ports API

----------------------------------------------------------- ----------------------------------

1. use root user id for executing "smitty iocp".
2. Check IOCP by executting following command 

# lsdev-Cc iocp

output:

• iocp0 Defined  I/O Completion Ports  //using smitty iocp enable
• iocp0 Available  I/O Completion Ports // No need to enable IOCP
2.  smitty  iocp
3. Select Configure Defined I/O Completion Ports.

When command complete, 

output  iocp0 Available.

5. EXIT from smitty menu.
6. Execute following command to check status of IOCP using command .

lsdev -Cc iocp

Output should read iocp0 Available  I/O Completion Ports.

IF still iocp0 is in defined state then execute "cfgmgr" command to enable it.

If AIX admin want to enable iocp0 permanantly, AIX admin must choose following option

at smitty menu

"At system restart, change the configured state from Defined to Available"

Thanks !!!!!