IBM 8840 User Guide - Page 17

v Light path diagnostics Light path diagnostics provides LEDs to help you diagnose problems. For more information, see the section about light path diagnostics in the Installation Guide. v Redundant connection The addition of an optional network interface card (NIC) provides a failover capability to a redundant Ethernet connection. If a problem occurs with the primary Ethernet connection, all Ethernet traffic associated with this primary connection is automatically switched to the redundant NIC. If the applicable device drivers are installed, this switching occurs without data loss and without user intervention. v Redundant cooling and power capabilities The server supports up to 12 hot-swap fans, which provide redundant cooling. The server supports up to two 650-watt power supplies, which provide redundancy and hot-swap capability for a typical configuration. v ServeRAID™ support The server supports ServeRAID adapters to create redundant array of independent disks (RAID) configurations. v Symmetric multiprocessing (SMP) Your server supports up to two Intel Xeon microprocessors. If the server comes with only one microprocessor, you can install an additional microprocessor to enhance performance and provide SMP capability. v Systems-management capabilities The server supports an optional IBM Remote Supervisor Adapter II SlimLine. This option, when used with the integrated baseboard management controller that comes with the server, enables you to manage the functions of the server locally and remotely. The Remote Supervisor Adapter II SlimLine also provides system monitoring, event recording, and dial-out alert capability. Reliability, availability, and serviceability Three important computer design features are reliability, availability, and serviceability (RAS). The RAS features help to ensure the integrity of the data that is stored in the server, the availability of the server when you need it, and the ease with which you can diagnose and correct problems. The server has the following RAS features: v Automatic error retry and recovery v Automatic restart after a power failure v Backup basic input/output system (BIOS) switching under the control of the service processor v Baseboard management controller (service processor) v Built-in monitoring for fan, power, temperature, voltage, and power-supply redundancy v Cable-presence detection on most connectors v Chipkill™ memory protection v Error codes and messages v Error correcting code (ECC) L2 cache and system memory v Hot-swap cooling fans with speed-sensing capability v Hot-swap hard disk drives v Information and light path diagnostics LED panels v Menu-driven setup, system configuration, and redundant array of independent disks (RAID) configuration programs Chapter 1. Introducing the IBM xSeries 346 Type 8840 5