IBM 86655RY Hardware Maintenance Manual - Page 15

- Minimum: 0.08 kVA - Maximum: 0.52 kVA Server features The unique design of the server takes advantage of advancements in symmetric multiprocessing (SMP), data storage, and memory protection. The server combines: • Impressive performance using an innovative approach to SMP The server supports up to four Pentium III Xeon microprocessors. The server comes with one microprocessor installed; you can install additional microprocessors to enhance performance and provide SMP capability. • Integrated disk-array subsystem Although many operating systems provide software fault tolerance through mirroring, IBM provides hardware fault tolerance through the redundant array of independent disks (RAID) controller. The IBM ServeRAID™ controller is a standard feature. It provides three channels and supports RAID levels 0, 1, 1E, 5, and 5E. • Large data-storage and hot-swap capabilities All models of the server support up to 10 slim-high or 7 half high hot-swap hard disk drives. This hot-swap feature enables you to remove and replace hard disk drives without turning off the server. • Hot-plug PCI adapter capabilities The server has four hot-plug slots for PCI adapters. With operating system support, you can replace failing hot-plug PCI adapters without turning off the server. If the hot-add feature is supported by the operating system and the PCI adapter, you can also add PCI adapters in these slots without turning off the server. • Redundant cooling and power capabilities The redundant cooling and hot-swap capabilities of the fans in the server enable continued operation if one of the fans fails, because you can replace a failing fan without turning off the server. The server comes standard with three 250-watt power supplies, which support redundancy for a typical configuration. You can install one additional power supply. • Large system memory The memory bus in the server supports up to 16 GB of system memory. The memory controller provides error correcting code (ECC) support for up to 16 industry-standard, 3.3 V, 168-pin, 8-byte, registered, dual inline memory modules (DIMMs). The memory controller also provides Chipkill™ memory protection. Chipkill memory protection is a technology that protects the system from component failure on a DIMM. • System-management capabilities The server comes with a Netfinity Advanced System Management Processor. This processor, in conjunction with the Netfinity Manager software provided on the ServerGuide CDs, enables you to manage the functions of the server locally and remotely. The Netfinity Advanced System Management Processor also provides system monitoring, event recording, and dial-out alert capability. General information 5