This assumes you are familiar with LVM (Logical Volume Manager). If not, check out my article Getting Started with LVM (Logical Volume Manager).

The vgcreate command can be used to create an LVM volume group. In this example, physical volumes /dev/sdb1 and /dev/sdc1 are added to a volume group named myVG. This assumes that both /dev/sdb1 and /dev/sdc1 have been set up as LVM physical volumes.

~]# vgcreate myVG /dev/sdb1 /dev/sdc1

The vgdisplay command can be used to verify the LVM volume group was created.

--- Volume group ---
VG Name               vg001
System ID
Format                lvm2
Metadata Areas        1
Metadata Sequence No  3
VG Access             read/write
VG Status             resizable
MAX LV                0
Cur LV                2
Open LV               2
Max PV                0
Cur PV                1
Act PV                1
VG Size               <15.51 GiB
PE Size               4.00 MiB
Total PE              3970
Alloc PE / Size       3960 / <15.47 GiB
Free  PE / Size       10 / 40.00 MiB
VG UUID               lgHh9m-9iMP-8ltU-2cxz-Y4wL-uwG0-EHiGFr