HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 installation and configuration guide (AG424-96004, March 2007)

HP STORAGEWORKS EFS WAN ACCELERATOR INSTALLATION AND CONFIGURATION GUIDE 15
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 common terms, new features, upgrade
instructions, technical and environmental specifications, and a description of the status
lights in the HP EFS WAN Accelerator. This chapter includes the following sections:
 “Overview of the HP EFS WAN Accelerator” next
 “Upgrading from Version 2.1 to Version 3.0” on page 19
 “Upgrading from Version 1.2 to Version 2.1” on page 17
Overview of the HP EFS WAN Accelerator
The HP Optimization System (RiOS) is the software that powers the HP EFS WAN
Accelerator and the HP StorageWorks Enterprise File Services WAN Accelerator
Manager. With the HP EFS WAN Accelerator, you can solve a range of problems
affecting Wide Area Networks (WANs) and application performance, including:
 Insufficient WAN bandwidth
 Inefficient transport protocols in high-latency environments
 Inefficient application protocols in high-latency environments
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.