HP StorageWorks Enterprise File Services WAN Accelerator 3.0.4 deployment guide (AG421-96001, March 2007)

HP STORAGEWORKS ENTERPRISE FILE SERVICES WAN ACCELERATOR DEPLOYMENT GUIDE 107
11 - NETWORK FILE SYSTEM
O
PTIMIZATION
CHAPTER 11 Network File System
Optimization
In This Chapter This chapter describes the HP EFS WAN Accelerator Network File System (NFS)
optimization feature and basic steps for implementing it:
 “Introduction to Network File System Optimization,” next
 “About NFS Prefetch Policies” on page 108
 “Implementing NFS” on page 108
This chapter assumes you are familiar with NFS and the HP EFS WAN Accelerator
Management Console (Management Console). For detailed information about the
Management Console and how to use it, see the HP Enterprise File Services 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
StorageWorks Enterprise File Services WAN Accelerator Installation and
Configuration Guide.
Introduction to Network File System
Optimization
You can configure HP EFS WAN Accelerators to use Transaction Prediction (TP) to
perform application-level latency optimization on NFS. Application-level latency
optimization improves NFS performance over high-latency wide-area networks
(WANs).
NFS latency optimization is only supported for NFS v3.
You can configure NFS settings globally for all servers and volumes or you can
configure NFS settings that are specific to particular servers or volumes. When you
configure NFS settings for a server, the settings are applied to all volumes on that
server unless you override settings for specific volumes.