HP Netserver AA Solution Administrator's Guide v4.0 SP1

Introduction 1-7
Endurance Server Overview
The Endurance server operates as a standard Windows server while offering a complete fault
tolerant operating environment. Because of this, the Endurance server supports any off-the-
shelf and custom applications that are compatible with Windows without requiring any
scripts or API support.
To achieve full redundancy and fault tolerance, the Endurance server integrates four industry-
standard Pentium-based systems with Marathon’s hardware and software. As a result, the
Windows operating system and all network services and applications perceive the Endurance
server as a single system, as shown in Figure 1-2.
Figure 1-2 Endurance Server Physical versus Logical View
CE
CE
IOP IOP
Endurance Server Physical View
Endurance Server Logical View
Endurance
Local Area Network
MIC
MICMIC
MIC
Server