HP NetServer AA 4000 HP NetServer AA 6200 Solution Release 3.0 Administrator&a - Page 23

Chapter 1 Introduction HP NetServer AA Server Overview The server operates as a standard Windows NT server while offering a complete fault tolerant operating environment. The server implements the standard Windows NT operating system. Because of this, the server supports any off-the-shelf and custom applications that are compatible with Windows NT without requiring any scripts or API support. To achieve full redundancy and fault tolerance, the server integrates four industry-standard Pentium-based systems with HP's hardware and software. As a result, the Windows NT operating system and all network services and applications perceive the server as a single system, as shown in Figure 1-2. HP NetServer AA Server Physical View CE CE MIC MIC MIC IOP MIC IOP HP NetServer AA Server Logical View HP NetServer AA Server Local Area Network Figure 1-2 HP NetServer AA Server Physical versus Logical View HP NetServer AA Server Hardware Configuration With four systems integrated into a single Windows NT fault tolerant server, as shown in Figure 1-1, the server provides complete hardware redundancy. Because the server uses redundant hardware, its hardware availability far surpasses that of a standard Windows NT server. Using redundant hardware also allows online service and replacement of hardware. The server supports multiple network connections to provide additional network redundancy and network traffic control. 7