$ lsdev | grep iocp
iocp0 Available I/O Completion Ports
iocp설정값을 enable 시켜주고, oracle 바이너리 파일을 relink 시켜줘야 한다.
IBM 공식 가이드
https://www.ibm.com/docs/ko/networkmanager/4.2.0?topic=aix-checking-io-completion-port-iocp-settings
oracle guide
Enable the "iocp" option and relink the oracle binaries.
To enable IOCP, set IOCP to Available using the following procedure:
Log in as root and run the following command:
# smitty iocp
Select Change / Show Characteristics of I/O Completion Ports.
Change configured state at system restart from Defined to Available.
Run the lsdev command to confirm the IOCP status is set to Available:
리부팅 전 우선 defined 된 상태의 device를 Available로 바로 바뀌진 않는다.
우선 Available로 바꾼 후 리부팅이 필요하다.
<서버 리부팅 전, 베리타스 볼륨이든, /etc/filesystems에 디스크가 혹시나 umount 된게 있는지도 확인이 필요
(#lsfs -a : 일관성 체크)>
Enable the "iocp" option and relink the oracle binaries.
To enable IOCP, set IOCP to Available using the following procedure: Log in as root and run the following command:
# smitty iocp Select Change / Show Characteristics of I/O Completion Ports.
Change configured state at system restart from Defined to Available.
Run the lsdev command to confirm the IOCP status is set to Available:
$ lsdev | grep iocp
iocp0 Available I/O Completion Ports
Perform a system restart to make the changes permanent.
Relink the binaries using " relink all " and then root.sh as root user.
To relink the binaries, refer the note: Relinking Oracle Home FAQ ( Frequently Asked Questions) (Doc ID 1467060.1)