VERITAS Volume Manager 3.1 Administrator's Guide

Introduction to Volume Manager
Volume Manager Conceptual Overview
Chapter 1 59
Figure 1-20 Volume Manager System Concepts
Private Region
VxVM Metadata
Public Region
User Data
Volume
Subdisk
VM Disk
Plex
Virtual Device Interface
vol
vol-01
disk01-01
disk01
/dev/vx/dsk/vol, /dev/vx/rdsk/vol
Applications
DBMS
File System
Volume Manager
Operating System Services
Platform Hardware
Device Interconnection Network
Physical Disks
Disk Array
Physical Disk
/dev/vx/[r]dmp/c1t2d3
Host System
Attached Devices
Volume Manager Objects
Dynamic Multipathing (DMP)
DMP Nodes
(User volume)
Volume
Plex
Storage
Volume
Disk ID
Disk Media
Disk Access
(simple disk)
Block#1152
/dev/vx/[r]dmp/c1t2d3:Block#128