Configuring Multipath Linux LVM Steps.
#To Install Multipath supportable RPM's
yum install -y device-mapper-multipath*
#Generate Sample Multipath Configuration
mpathconf --enable --user_friendly_names y
#Start Multipathd Services
systemctl start multipathd.service
#To Check Netapp SAN LUN Disks and Paths
sanlun lun show -p
# Configure Multipath Alias
vim /etc/multipath.conf
#check the Status of Configured Alias reflected
multipath -v2
# List Created Disk Paths
ls -al /dev/mapper/
#Create Linux LVm Partition
fdisk /dev/mapper/DATA-DISK
#Add Mapping to Partition
kpartx -a /dev/mapper/DATA-DISK
#Create Physical Volume
pvcreate /dev/mapper/DATA-DISKp1
#Create Volume Group
vgcreate ATE-PROD /dev/mpath/DATA-DISKp1 /dev/mpath/DATA-DISKp1
#Create LV with 100% Free Space
lvcreate -n U03 -l 100%FREE DATAVG
#File System Creation in Newly Created LVM
mkfs -t ext3 /dev/DATAVG/U03
#Mount Permanently using fstab Entry
vi /etc/fstab
/dev/DATAVG/U03 /u03 ext3 defaults 1 2