Introduction to the logical Volume manager LVM

The full name of the LVM is Logical Volume Manager, which can be translated as a logical scroll bar administrator

PV, solid scroll bar

VG, scroll bar Group

PE, Entity extension area

LV, logical scroll bar

Through the PV, VG, LV planning, and then use the MKFS can be your LV format can be used as a file system!

Split out 4 partition, each partition capacity is about 1GB, system ID needs to be 8e

All partition are integrated into a VG,VG name set to DGVG and the size of PE is 16MB;

All VG capacity is thrown to LV, the name of LV is set to DGLV;

Eventually this LV is formatted as a ext3 file system and is mounted in/MNT/LVM

Step 鄹 1 Partitioning a specific disk, such as a SDC

Command (M for help): t

Partition number (1-4): 3

Hex code (type L to list codes): 8e

Changed system type of partition 3 to 8e (Linux LVM)

Command (M for help): W

The partition table has been altered!

Calling IOCTL () to re-read partition table.

Syncing disks.

[Root@localhost ~]# Partprobe

[Root@localhost ~]# Fdisk–l