Compaq ProLiant 7000 Compaq ProLiant 7000 Server Technology - Page 10

ECG078/0698 TECHNOLOGY BRIEF (cont.) ... Standard Peripheral Board The Standard Peripheral Board (Figure 5) contains ASICs (among them four Compaq-designed ASICs) to provide connections for all system management and legacy components. This includes connectors for the mouse, keyboard, IDE CD-ROM, diskette drive, video, parallel devices, SCSI devices, and Integrated Management Display (IMD). The system ROM, configuration switch, and battery for CMOS are also located on this board. I MD Connector SSCCSSII PPoorrtt 1 D iskette D ri ve Connec tor IDE CD-R OM Conne ctor Figure 5: Standard Peripheral Board. Pa ra llel Conne ctor V ide o Connec tor M ouse C on n ecto r Key board Conne ctor HIGH-AVAILABILITY TECHNOLOGIES Industry tolerance of server downtime continues to decrease as companies become more global, decentralized, and aware of downtime costs. A 1996 study2 found that 37 percent of Fortune 1000 companies require recovery from failure in less than three minutes. The ProLiant 7000 answers the demand for high availability by incorporating the following features into the server hardware: • Redundant network interface controller technology • Redundant, hot-plug fans • Redundant processor power modules • Redundant, hot-plug power supplies • Hot-plug drives • Compaq Smart Array 3100ES Controller • PCI Hot Plug technology for PCI adapters Redundant components ensure that the server is highly fault-tolerant. In many cases, if a power supply, fan, processor power module, or I/O board fails, the redundant standby component can take over operation with no downtime to the server. With the addition of hot-plug capabilities, server downtime can be eliminated while components are being replaced, added, or upgraded. 2 Demand Assessment Requirements Tracking Study, Executive Summary, The Standish Group International, 1996. 10