When you get a WWID of a newly presented LUN you simply have to add to multipath.conf. Match WWID from previous entry. vi /etc/mutltipath.conf Restart the service : service multipathd restart Run a for loop to scan for any new hard drives : for i in 0 1 2 3 4 5 6 7 8 9 10 do echo “- – – ” > /sys/class/scsi_host/host$i/scan done multipath -v3 multipath -ll | grep (LUN PATH) Now use fdisk to create a partition : fdisk /dev/mapper/ to create a partition p – prints partition list on the selected disk n – create a new partition p – set primary partition 1 default from then on out. w – to write the changes Now scan for the system to find the newly created partitions : kpartx -a kpartx -l /dev/mapper/ Add it to fdisk if needed otherwise you are complete 🙂