1.1 z13 highlights1.1.1 Processor and memory1.1.2 Capacity and performance1.1.3 I/O subsystem and I/O features1.1.4 Virtualization1.1.5 Reliability, availability, and serviceability design1.2 z13 technical overview1.2.1 Models1.2.2 Model upgrade paths1.2.3 Frames1.2.4 CPC drawer1.2.5 I/O connectivity: PCIe and InfiniBand1.2.6 I/O subsystems1.2.7 Coupling and Server Time Protocol connectivity1.2.8 Special-purpose features1.2.9 Reliability, availability, and serviceability (RAS)1.3 Hardware Management Consoles (HMCs) and Support Elements (SEs)1.4 IBM z BladeCenter Extension (zBX) Model 0041.4.1 Blades1.4.2 IBM WebSphere DataPower Integration Appliance XI50 for zEnterprise1.5 IBM z Unified Resource Manager1.6 Operating systems and software1.6.1 Supported operating systems1.6.2 IBM compilers