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Universal Volume Manager Components
System using Universal Volume Manager usually contains the following
components:
– Local storage system (USP V/VM storage system)
– External storage system
– Storage Navigator computer
– Universal Volume Manager
– External volume
– Internal volume, which is a virtual representation of an external volume
– LDEVs (Logical Devices) in an external volume
– Cross-subsystem path
– Mapping path
The following figure illustrates the relations of the Universal Volume Manager
components.
Set or View
Storage
Navigator
Computer
Legend
Figure 2-2
This section describes the details of the storage systems, cross-subsystem
paths, volumes and mapping paths as shown in the above figure.
2-4
Hitachi Universal Storage Platform V/VM Universal Volume Manager User's Guide
Local Storage System
A
SVP
LDEVs in the
(Web Server)
External Volume
：Volumes installed in the storage system
：Virtual volumes that do not have physical memory space
：Lines showing the concept of mapping
Universal Volume Manager Components
About Universal Volume Manager Operations
Host
Target
Port
B
Create
LDEVs
External
External Storage System
C
Mapping
Port
WWN
Port
Cross-subsystem Path
Mapping Path
External
Volume
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