Enterprise Volume Manager (Multi-OS) Version 2.0D Network Administration Guide

Enterprise Volume Manager (Multi-OS) Network Administration Guide 2–1
2
Introduction to EVM
This chapter presents a basic introduction to the Enterprise Volume Manager,
discussing its purpose, its components, and its basic configuration.
What Is EVM?
EVM is an application program that makes point-in-time copies of storage volumes.
These copies, called Business Continuance Volumes (BCVs), can be mounted
dynamically on any other supported host in the EVM storage network. To replicate
storage volumes, EVM requires the establishment of an EVM network. Figure 2–1
shows a typical EVM network.
Figure 2–1: EVM network configuration
The EVM network consists of the following hardware and software components.
• One HP OpenView Management Appliance
• One or more host computers
• One or more HP StorageWorks storage systems
TCP/IP
CXO8019A
EVM
Host
Agent
EVM
Host
Agent
EVM Server on
Management
Appliance
StorageWorks
Storage Systems
Browsers
Fibre Channel SAN
LAN