Logical Volume Manager (LVM)
The Logical Volume Manager is a management function that groups the save areas in multiple drives and parti-
tions and manages these areas as one logical drive. Adding drives and expanding logical volumes can be per-
formed 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 snap-
shot as a different logical volume.
To use LUNs in the ETERNUS AF to configure an LVM, the LVM can be configured by registering LUNs in the
ETERNUS AF as physical volumes.
Figure 77 Logical Volume Manager (LVM)
Physical group
RAID group #0 RAID group #1 RAID group #2
Physical volume Physical volume Physical volume
Business server
Logical volume
Volume group
LUN LUN LUN
ETERNUS AF
LVM
1. Function
Server Linkage Functions
123
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays
Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AG-1822-09ENZ0
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