HP StorageWorks Enterprise File Services WAN Accelerator 2.1 Installation and Configuration Guide (November 2005)

HP STORAGEWORKS EFS WAN ACCELERATOR INSTALLATION AND CONFIGURATION GUIDE 13
1 - OVERVIEW OF THE HP EFS
WAN A
CCELERATOR
CHAPTER 1 Overview of the HP EFS WAN
Accelerator
In This Chapter This chapter provides an overview of the HP EFS WAN Accelerator. This
chapter includes the following sections:
 “Overview of the HP EFS WAN Accelerator” next
 “New Features” on page 15
 “Upgrading from Version 1.2 to Version 2.1” on page 17
Overview of the HP EFS WAN Accelerator
The HP EFS WAN Accelerator uses Scalable Data Referencing (SDR) and
Transaction Prediction (TP) to optimize throughput and save bandwidth in
Wide Area Networks (WANs). With the HP EFS WAN Accelerator, you can
improve the performance of your applications without interfering with your
existing systems.
For detailed information about how the HP EFS WAN Accelerator works and
how to design your network deployment, see the HP EFS WAN Accelerator
Deployment Guide.
Definition of
Terms
The following terms are used to describe features, attributes, and processes in
the HP EFS WAN Accelerator:
 Optimization. The process of increasing data throughput and network
performance over the WAN using the HP EFS WAN Accelerator. An
optimized connection exhibits bandwidth reduction as it traverses the
WAN.
 Scalable Data Referencing (SDR). The proprietary algorithms that allow
an arbitrarily large amount of data to be represented by a small number of
references to the HP EFS WAN Accelerator data store. As data flows
through the HP EFS WAN Accelerator, all Transmission Control Protocol
(TCP) traffic is mapped onto references to data that is stored on either side
of the network link. SDR increases WAN network performance and
decreases consumed bandwidth.