Compaq ProLiant 8000 Compaq ProLiant 8000 Server Technology - Page 11

TC000603TB TECHNOLOGY BRIEF (cont.) ... Katmai New Instructions KNI refers to the addition of 70 new instructions to the MMX instruction set. The new instructions primarily refer to the new SIMD-FP registers, but some new integer instructions also have been added. The new instructions are particularly useful for multimedia applications such as 3D rendering and video encoding and decoding. HIGH-AVAILABILITY TECHNOLOGIES Tolerance of server downtime continues to decrease, as companies become more global, decentralized, and aware of downtime costs. The ProLiant 8000 server answers the demand for high availability by incorporating the following features into the server hardware: • PCI Hot Plug technology • Redundant array controller technology • Redundant network interface controller (NIC) technology • Redundant, hot-plug fans • Redundant PPMs • Redundant, hot-plug power supplies • Hot-plug drives Redundant components help ensure that the server is highly fault tolerant. In redundant configurations, if a power supply, fan, or PPM 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. PCI Hot Plug Technology The Compaq ProLiant 8000 server incorporates industry-standard PCI Hot Plug technology. This technology, pioneered by Compaq, adds hot-plug capabilities to existing PCI adapters for increased system availability and serviceability. Compaq led the industry by licensing its PCI Hot Plug implementation to Intel, thus broadening customer access to this industry-standard technology. Compaq's implementation of PCI Hot Plug incorporates electronics into the server to control each PCI Hot Plug slot individually, so that a single slot can be powered down without affecting the operation of the other slots. Compaq's implementation of the PCI Hot Plug standard allows the following capabilities while the system is running: • Hot replacement - replacing a single PCI adapter with a similar adapter • Hot upgrade - replacing a PCI adapter with an upgraded adapter • Hot expansion - adding a PCI adapter to an empty slot The ProLiant 8000 server supports all three hot-plug capabilities for all 64-bit and 32-bit PCI Hot Plug slots. These capabilities can be added incrementally, depending on the OS implementation. 11