User Guide

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Contents
Preface 9 About This Book
10 What’s New in Xsan 2
10 Version Compatibility
10 Upgrading from an Earlier Version of Xsan
11 Getting Additional Information
11 Notation Conventions
Chapter 1 13 Overview of Xsan
13 Xsan Storage Area Networks
14 Shared SAN Volumes
15 Metadata Controllers
15 Clients
15 Network Connections
16 How Xsan Storage Is Organized
16 LUNs
17 Storage Pools
17 Affinities
18 Volumes
19 Folders with Affinities
19 How Xsan Uses Available Storage
19 Metadata and Journal Data
19 Striping at a Higher Level
20 Security
20 Expanding Storage
21 Xsan Capacities
Chapter 2 23 Planning a Storage Area Network
23 Hardware and Software Requirements
23 Supported Computers
24 Supported Storage Devices
24 Fibre Channel Fabric
25 Ethernet TCP/IP Network
26 Directory Services