Strage

yum install  fcoe-utils
yum install fctxpd
/sbin/mpathconf --enable
reboot 
multipath -ll
lsblk
ls -l /dev/mapper/mpath*

yum install nfs-utils
systemctl stop firewalld
systemctl disable firewalld
systemctl start nfs-server
systemctl enable nfs-server

vi /etc/exports 
exportfs -rav       (r: reexport)

/fc/vol_a       202.26.150.65(rw,async,no_root_squash)
/fc/vol_b       202.26.150.65(rw,async,no_root_squash)