IBM x3850 X5 7145 Installation And User Manual

Also see for System x3950 X5: Installation and user guide Implementation guide Installation and user guide Problem determination and service guide

Contents

The DSA Preboot diagnostic programs are stored in integrated USB memory andcollect and analyze system information to aid in diagnosing server problems. Thediagnostic programs collect the following information about the server:– Event logs for ServeRAID controllers and service processors– Hard disk drive health– Installed hardware– Light path diagnostics status– Network interfaces and settings– RAID controller configuration– Service processor status and configuration– System configuration– Vital product data, firmware, and UEFI configurationFor additional information about DSA, see the Problem Determination andService Guide on the IBM Documentation CD.v Redundant connectionThe addition of an optional network interface card (NIC) provides a failovercapability to a redundant Ethernet connection. If a problem occurs with theprimary Ethernet connection, all Ethernet traffic that is associated with theprimary connection is automatically switched to the redundant NIC. If theapplicable device drivers are installed, this switching occurs without data loss andwithout user intervention.v Redundant cooling and power capabilitiesThe redundant cooling of the fans in the server enables continued operation ifone of the fans fails. The server supports up to two hot-swap power supplies,which provide redundant power for many server configurations.v ServeRAID supportThe server supports ServeRAID controllers to create redundant array ofindependent disks (RAID) configurations.v Symmetric multiprocessing (SMP)The server supports up to four multi-core Intel Xeon microprocessors. One ormore multi-core microprocessors provides SMP capability.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 correct problems.The server has the following RAS features:v Advanced memory features:– Single-bit memory error detection– Single-bit memory error hardware correction– Multi single-bit memory error recovery and corrections– Uncorrectable error (UE) detection– Full array memory mirroring (FAMM) redundancy– Automatic failover recovery for UEs when FAMM is configured– Automated logical removal of failed DIMMs on reboots prior to replacement– Automatic address parity checking during writes and readsv Automatic BIOS recovery (ABR) for UEFIv Automatic error retry and recoveryv Automatic restart after a power failurev Availability of microcode and diagnostic levelsv Integrated management module (service processor)Chapter 1. The System x3850 X5 and x3950 X5 server 9