2-4
About Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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.
Local Storage System
Target
Port
Host
Port
WWN
External Storage System
External
Port
Legend
:
Volumes installed in the storage system
:
Virtual volumes that do not have physical memory space
:
Lines showing the concept of mapping
Mapping
Cross-subsystem Path
Mapping Path
Storage
Navigator
Computer
SVP
(Web Server)
External
Volume
LDEVs in the
External Volume
Set or View
A
B
C
Create
LDEVs
Figure 2-2
Universal Volume Manager Components
This section describes the details of the storage systems, cross-subsystem
paths, volumes and mapping paths as shown in the above figure.