Be careful before using the write command. Device does not contain a recognized partition table. Created a new DOS disklabel with disk identifier 0x6a1cf69e. Command (m for help):  n Partition type p primary (0 primary, 0 extended, 4 free) e extended (container for logical partitions) Select (default p):  p Partition number (1-4,  default 1 ): First sector (2048-41943039,  default 2048 ): Last sector, +sectors or +size{K,M,G,T,P} (2048-41943039,  default 41943039 ): Created a new partition 1 of type 'Linux' and of size 20 GiB. Command (m for help):  wq The partition table has been altered. Calling ioctl() to re-read partition table. itso-sles12-powerha-n-1 :/dev/mapper # ls | grep part DATA1-part1 DATA2-part1 DATA3-part1 itso-sles12-powerha-n-1:~ #  pvcreate /dev/mapper/DATA1-part 1 Physical volume "/dev/mapper/DATA1-part1" successfully created itso-sles12-powerha-n-1:~ #  pvcreate /dev/mapper/DATA2-part 1 Physical volume "/dev/mapper/DATA2-part1" successfully created itso-sles12-powerha-n-1:~ #  pvcreate /dev/mapper/DATA3-part1 Physical volume "/dev/mapper/DATA3-part1" successfully created itso-sles12-powerha-n-1:~ #  pvdisplay --- Physical volume --- PV Name /dev/mapper/ROOTVG-part3 VG Name rootvg PV Size 47.50 GiB / not usable 3.00 MiB Allocatable yes PE Size 4.00 MiB Total PE 12160 Free PE 1 Allocated PE 12159 PV UUID bYkVrQ-X9zt-iaiH-bfyc-p10X-XLLa-zAZtcD "/dev/mapper/DATA2-part1" is a new physical volume of "20.00 GiB" --- NEW Physical volume --- PV Name /dev/mapper/DATA2-part1 VG Name PV Size 20.00 GiB Allocatable NO PE Size 0 Total PE 0 Free PE 0 Example 11-42 Creating the physical volumes using the pvcreate command 28.Create a physical volume on the partition by using the  pvcreate  command, as shown in  Example 11-42. Chapter 11. PowerHA SystemMirror V7.2.2 for Linux  451