1. HBA카드 확인
# lspci | grep Fibre

 장치 정보 확인
#lsscsi

 path정보확인
#multipath -ll

2. multipath 패키지 설치 확인
# rpm -qa | grep multipath
device-mapper-multipath-libs-0.4.9-85.el7.x86_64
device-mapper-multipath-0.4.9-85.el7.x86_64
# rpm -qa | grep device-mapper
device-mapper-libs-1.02.107-5.el7.x86_64
device-mapper-persistent-data-0.5.5-1.el7.x86_64
device-mapper-multipath-libs-0.4.9-85.el7.x86_64
device-mapper-multipath-0.4.9-85.el7.x86_64
device-mapper-event-1.02.107-5.el7.x86_64
device-mapper-1.02.107-5.el7.x86_64
device-mapper-event-libs-1.02.107-5.el7.x86_64

3. multipath 패키지 설치
#  yum install *mapper*

4. multipath conf 파일 복사

#  multipath -l
-파일이 없다는 메세지가 나올 경우
# cp /usr/share/doc/device-mapper-multipath-0.4.9/multipath.conf /etc/

# systemctl start multipathd

5. multipath 설정 파일 수정
#########################
# vi /etc/multipath.conf

주석 제거 후  find_multipaths yes -> find_multipaths no

defaults {
        user_friendly_names yes
        find_multipaths yes
}