1、首先通过fdisk -l查看当前存在的物理磁盘
[root@rac1 work]# fdisk -l
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 2610 20860402+ 8e Linux LVM
Disk /dev/sdb: 536 MB, 536870912 bytes
64 heads, 32 sectors/track, 512 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 536 MB, 536870912 bytes
64 heads, 32 sectors/track, 512 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sdc doesn't contain a valid partition table
2、使用pvcreate创建PV物理分区(可以pvcreate /dev/sdb /dev/sdd同时创建多个PV)
[root@rac1 work]# pvcreate /dev/sdd
Physical volume "/dev/sdd" successfully created
3、PV创建成功,可以是用pvscan和pvdisplay进行查询当前PV状况
[root@rac1 work]# pvscan
PV /dev/sdb VG vg01 lvm2 [508.00 MB / 8.00 MB free]
PV /dev/sdc VG vg01 lvm2 [508.00 MB / 508.00 MB free]
PV /dev/sdd VG vg01 lvm2 [508.00 MB / 508.00 MB free]
PV /dev/sda2 VG VolGroup00 lvm2 [19.88 GB / 0 free]
PV /dev/sde lvm2 [512.00 MB]
PV /dev/sdf lvm2 [512.00 MB]
Total: 6 [22.36 GB] / in use: 4 [21.36 GB] / in no VG: 2 [1.00 GB]