HP NonStop G-Series - Manual (Page 3)

Compaq Computer Corporation — 425485-001
i
ServerNet Nomadic Disk User’s
Guide
Index Examples Figures Tables
What’s New in This Guide vii
Guide Information vii
New and Changed Information vii
About This Guide ix
What’s in This Guide ix
Where to Get More Information x
Your Comments Invited x
Notation Conventions xi
1. ServerNet Nomadic Disk Overview
Remote Disk Drive Mirroring 1-2
Physically Switching the Disk Drives 1-2
Data Paths and Disk Drive Ownership Before a Switchover 1-3
Data Paths and Disk Drive Ownership After a Switchover 1-4
Logically Switching a Database 1-5
Supported Database Products 1-5
Unsupported Database Products 1-5
2. Nomadic Disk Hardware and Software
Hardware and Software Restrictions 2-2
Nomadic Disk Software 2-2
Nomadic Disk Manager 2-2
Switch Command Interface (SWCI) 2-2
Nomadic Disk Hardware 2-3
Required Hardware for All Configurations 2-3
Required Hardware for Remote Mirroring 2-3
Required Hardware for Fiber-Optic Switching 2-4