Fibre Channel in Linux(CentOS7)

Get the WWN of the controller

1cd /sys/class/fc_host/host5/
2
3[root@ibm2 host5]# cat node_name
40x200000051e8e53aa

Rescan the FC bus.

1cd /sys/class/fc_host/host5/
2echo "1" >; issue_lip

OR

1yum install sg3_utils
2
3rescan-scsi-bus.sh

List disks

 1[root@hp by-path]# sscsi
 2[0:0:0:0]    disk    ATA      WDC WD4000FYYZ-0 1K03  /dev/sda
 3[1:0:0:0]    disk    ATA      WDC WD4000FYYZ-0 1K03  /dev/sdb
 4[2:0:0:0]    disk    ATA      WDC WD4000FYYZ-0 1K03  /dev/sdc
 5[3:0:0:0]    disk    ATA      WDC WD4000FYYZ-0 1K03  /dev/sdd
 6[6:0:0:0]    disk    IBM      1746      FAStT  1070  /dev/sde
 7[6:0:0:1]    disk    IBM      1746      FAStT  1070  /dev/sdf
 8[6:0:0:2]    disk    IBM      1746      FAStT  1070  /dev/sdg
 9[6:0:0:3]    disk    IBM      1746      FAStT  1070  /dev/sdh
10[6:0:0:4]    disk    IBM      1746      FAStT  1070  /dev/sdi
11[6:0:0:5]    disk    IBM      1746      FAStT  1070  /dev/sdj
12[6:0:0:6]    disk    IBM      1746      FAStT  1070  /dev/sdk
13[6:0:0:7]    disk    IBM      1746      FAStT  1070  /dev/sdl
14[6:0:0:8]    disk    IBM      1746      FAStT  1070  /dev/sdm
15[6:0:0:9]    disk    IBM      1746      FAStT  1070  /dev/sdn
16[6:0:0:10]   disk    IBM      1746      FAStT  1070  /dev/sdo
17[6:0:0:11]   disk    IBM      1746      FAStT  1070  /dev/sdp
18[6:0:0:12]   disk    IBM      1746      FAStT  1070  /dev/sdq
19[6:0:0:13]   disk    IBM      1746      FAStT  1070  /dev/sdr
20[6:0:0:14]   disk    IBM      1746      FAStT  1070  /dev/sds
21[6:0:0:15]   disk    IBM      1746      FAStT  1070  /dev/sdt
22[6:0:0:16]   disk    IBM      1746      FAStT  1070  /dev/sdu
23[6:0:0:17]   disk    IBM      1746      FAStT  1070  /dev/sdv
24[6:0:0:18]   disk    IBM      1746      FAStT  1070  /dev/sdw
25[6:0:0:19]   disk    IBM      1746      FAStT  1070  /dev/sdx
26[6:0:0:20]   disk    IBM      1746      FAStT  1070  /dev/sdy
27[6:0:0:21]   disk    IBM      1746      FAStT  1070  /dev/sdz