IBM x3400 - System - 7975 User Manual

Contents

full-buffered, dual inline memory modules (DIMMs). For more information, see“Installing a memory module” on page 28.v Online-spare memorySome models support online-sparing memory. Online-spare memory disables afailed rank pair of DIMMs from the system configuration and activates anonline-spare rank pair of DIMMs to replace the failed rank pair of DIMMs. For anonline-spare pair of DIMMs to be activated, you must enable this feature andhave installed an additional pair of DIMMs of the same speed, type, size (orlarger), and technology as the failed pair of DIMMs. For more information, see“Installing a memory module” on page 28.v Redundant power capabilitiesSome models supports up to two 835-watt power supplies, which provideredundancy and hot-swap capability for a typical configuration. If the maximumload on the server is less than 835 watts and a problem occurs with one of thepower supplies, the other power supply can meet the power requirements.v ServeRAID ™ supportSome models support ServeRAID adapters to create redundant array ofindependent disks (RAID) configurations. Some models also have integratedRAID level-0 and level-1 support.v Symmetric multiprocessing (SMP)The server supports up to two Intel Xeon microprocessors. Each microprocessorprovides symmetric multiprocessing capability. When you install the secondmicroprocessor, this will enhance the performance of the server.v Systems-management capabilitiesThe server supports an optional Remote Supervisor Adapter II SlimLine, whichprovides service-processor functions in addition to those that the BMC provides.When this adapter is used with the systems-management software that comeswith the server, you can 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.See the documentation that comes with your systems-management software formore information. To order an optional Remote Supervisor Adapter II SlimLine,contact your IBM marketing representative or authorized reseller.Reliability, availability, and serviceabilityThree important server design features are reliability, availability, and serviceability(RAS). The RAS features help to ensure the integrity of the data that is stored inthe server, the availability of the server when you need it, and the ease with whichyou can diagnose and repair problems.The server might have the following RAS features (the features vary depending onyour model):v 1-year parts and 1-year labor limited warranty (Machine Types 7973 and 7975)and 3-year parts and 3-year labor limited warranty (Machine Types 7974 and7976)v Advanced Configuration and Power Interface (ACPI)v Advanced Desktop Management Interface (DMI) featuresv Automatic error retry or recoveryv Automatic memory downsizing on error detectionv Automatic restart on nonmaskable interrupt (NMI)Chapter 1. The System x3400 server 7