Get the WWN of the controller
cd /sys/class/fc_host/host5/
[root@ibm2 host5]# cat node_name
0x200000051e8e53aa
Rescan the FC bus
cd /sys/class/fc_host/host5/
echo "1" > issue_lip
OR
yum install sg3_utils
rescan-scsi-bus.sh
List disks
[root@hp by-path]# lsscsi
[0:0:0:0] disk ATA WDC WD4000FYYZ-0 1K03 /dev/sda
[1:0:0:0] disk ATA WDC WD4000FYYZ-0 1K03 /dev/sdb
[2:0:0:0] disk ATA WDC WD4000FYYZ-0 1K03 /dev/sdc
[3:0:0:0] disk ATA WDC WD4000FYYZ-0 1K03 /dev/sdd
[6:0:0:0] disk IBM 1746 FAStT 1070 /dev/sde
[6:0:0:1] disk IBM 1746 FAStT 1070 /dev/sdf
[6:0:0:2] disk IBM 1746 FAStT 1070 /dev/sdg
[6:0:0:3] disk IBM 1746 FAStT 1070 /dev/sdh
[6:0:0:4] disk IBM 1746 FAStT 1070 /dev/sdi
[6:0:0:5] disk IBM 1746 FAStT 1070 /dev/sdj
[6:0:0:6] disk IBM 1746 FAStT 1070 /dev/sdk
[6:0:0:7] disk IBM 1746 FAStT 1070 /dev/sdl
[6:0:0:8] disk IBM 1746 FAStT 1070 /dev/sdm
[6:0:0:9] disk IBM 1746 FAStT 1070 /dev/sdn
[6:0:0:10] disk IBM 1746 FAStT 1070 /dev/sdo
[6:0:0:11] disk IBM 1746 FAStT 1070 /dev/sdp
[6:0:0:12] disk IBM 1746 FAStT 1070 /dev/sdq
[6:0:0:13] disk IBM 1746 FAStT 1070 /dev/sdr
[6:0:0:14] disk IBM 1746 FAStT 1070 /dev/sds
[6:0:0:15] disk IBM 1746 FAStT 1070 /dev/sdt
[6:0:0:16] disk IBM 1746 FAStT 1070 /dev/sdu
[6:0:0:17] disk IBM 1746 FAStT 1070 /dev/sdv
[6:0:0:18] disk IBM 1746 FAStT 1070 /dev/sdw
[6:0:0:19] disk IBM 1746 FAStT 1070 /dev/sdx
[6:0:0:20] disk IBM 1746 FAStT 1070 /dev/sdy
[6:0:0:21] disk IBM 1746 FAStT 1070 /dev/sdz