Logical Volume Manager (Lvm); Figure 82 Logical Volume Manager (Lvm) - Fujitsu ETERNUS DX100 S4 Design Manual

3. SAN Functions
Server Linkage Functions

Logical Volume Manager (LVM)

The Logical Volume Manager is a management function that groups the save areas in multiple
drives and partitions and manages these areas as one logical drive. Adding drives and expanding
logical volumes can be performed without stopping the system. This function can be used on UNIX
OSs (includes Linux).
LVM has a snapshot function. This function obtains any logical volume data as a snapshot and saves
the snapshot as a different logical volume.
To use LUNs in the ETERNUS DX to configure an LVM, the LVM can be configured by registering
LUNs in the ETERNUS DX as physical volumes.

Figure 82 Logical Volume Manager (LVM)

Business server
LVM
ETERNUS DX
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Volume group
Logical volume
Physical volume Physical volume
LUN LUN
RAID group #0 RAID group #1
145
Copyright 2023 Fujitsu Limited
Physical group
Physical volume
LUN
RAID group #2
P3AM-7642-32ENZ0