embedded BMC. The Remote Supervisor Adapter II SlimLine, provides adedicated Ethernet connection at the rear of the server.v TCP/IP offload engine (RTOE) supportThe Ethernet controllers in the server support TOE, which is a technology thatoffloads the TCP/IP flow from the microprocessor and I/O subsystem to increasethe speed of the TCP/IP flow. When an operating system that supports TOE isrunning on the server and TOE is enabled, the server supports TOE operation.See the operating-system documentation for information about enabling TOE.Note: As of the date of this document, the Linux operating system does notsupport TOE.Reliability, availability, and serviceabilityThree important computer design features are reliability, availability, andserviceability (RAS). The RAS features help to ensure the integrity of the data thatis stored in the server, the availability of the server when you need it, and the easewith which you can diagnose and correct problems.Your server has the following RAS features:v Automatic error retry and recoveryv Automatic restart after a power failurev Baseboard management controller (BMC) service processorv Backup basic input/output system (BIOS) switching under the control of the BMCv Built-in monitoring for fan, power, temperature, voltage, and power-supplyredundancyv Cable-presence detection on most connectorsv Chipkill ™ memory protectionv Error codes and messagesv Error correcting code (ECC) L2 cache and system memoryv Hot-swap hard disk drives, some drivesv Information and light path diagnostics LED panelsv Menu-driven setup, system configuration, and redundant array of independentdisks (RAID) configuration programsv Availability of microcode and diagnostic levelsv Parity checking on the small computer system interface (SCSI) bus and PCIbusesv Power management: Compliance with Advanced Configuration and PowerInterface (ACPI)v Power-on self-test (POST)v Predictive Failure Analysis ® (PFA) alertsv Redundant Ethernet capabilities with failover supportv Hot-swap cooling fans with speed-sensing capabilityv Redundant hot-swap power supplies and redundant hot-swap fans (somemodels)v Remind button to temporarily turn off the system-error LEDv Remote system problem-determination supportv Standby voltage for system-management features and monitoringv Startup (boot) from LAN through remote initial program load (RIPL) or dynamichost configuration protocol/boot protocol (DHCP/BOOTP)v System auto-configuring from the configuration menuv System-error logging (POST and BMC)v System-management monitoring through the Iner IC protocolv Upgradeable POST, BIOS, diagnostics, BMC firmware, and read-only memory(ROM) resident code, locally or over the LAN8 IBM System x3550 Type 7978: User’s Guide