HP StorageWorks Enterprise File Services WAN Accelerator Deployment Guide (November 2005)

HP EFS WAN ACCELERATOR DEPLOYMENT GUIDE 29
3 - LOGICAL IN-PATH NETWORK
D
EPLOYMENTS
CHAPTER 3 Logical In-Path Network
Deployments
In This Chapter This chapter describes logical in-path deployments and summarizes the basic
steps for configuring them. This chapter includes the following sections:
 “Introduction to Logical In-Path Deployments,” next
 “In-Path, Load Balanced, Layer-4 Switch” on page 30
This chapter assumes you are familiar with the HP EFS WAN Accelerator
Management Console (Management Console). For detailed information about
the Management Console and how to use it, see the HP EFS WAN Accelerator
Management Console User Guide.
This chapter also assumes that you are familiar with the installation and
configuration process for the HP EFS WAN Accelerator. For detailed
information, see the HP EFS WAN Accelerator Installation and Configuration
Guide.
This chapter provides the basic steps for logical in-path deployments. It does
not provide detailed procedures. Use this chapter as a general guide to these
deployments. If you need additional assistance, contact HP technical support
located at http://www.hp.com.
For detailed information about the factors you must consider before you
design and deploy the HP EFS WAN Accelerator in a network environment,
see “Design and Deployment Overview” on page 15.
Introduction to Logical In-Path Deployments
In a logical in-path deployment, the HP EFS WAN Accelerator is logically in
the path between clients and servers. In a logical in-path deployment, clients
and servers continue to see client and server IP addresses. This deployment
differs from a physical in-path deployment in that a packet redirection
mechanism is used to direct packets to HP EFS WAN Accelerators that are not
in the physical path of the client or server. Redirection mechanisms include: