 
Administrator Guide
 
Apple Inc.
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019-1287/2009-08-01
 
9
Preface: About This Book
10
What’s New in Xsan 2
10
Version Compatibility
11
Upgrading from an Earlier Version of Xsan
11
Getting Additional Information
12
Notation Conventions
13
Chapter 1: Overview of Xsan
14
Xsan Storage Area Networks
15
Shared SAN Volumes
15
Metadata Controllers
15
Clients
15
Network Connections
16 How Xsan Storage Is Organized
16 
LUNs
17
Storage Pools
17
Affinities and Affinity Tags
18
Volumes
18
Folders with Affinities
19
How Xsan Uses Available Storage
19
Metadata and Journal Data
19
Striping at a Higher Level
19
Security
20 Expanding Storage
20 Xsan Capacities
21
Chapter 2: Planning a Storage Area Network
21 Hardware and Software Requirements
21 
Supported Computers
22
Supported Storage Devices
22
Fibre Channel Fabric
23
Ethernet TCP/IP Network
24
Directory Services
3