1.1 Design considerations for the IBM z151.1.1 Complementing and augmenting cloud solutions1.1.2 Compliance, resiliency, and performance1.1.3 Pervasive encryption1.1.4 IBM Z Data Privacy Passports1.1.5 Blending open source with IBM Z state-of-the-art technologies1.2 z15 server highlights1.2.1 Processor and memory1.2.2 Capacity and performance1.2.3 Virtualization1.2.4 I/O subsystem and I/O features1.2.5 Reliability, availability, and serviceability design1.3 z15 server technical overview1.3.1 Model and features1.3.2 Model upgrade paths1.3.3 Frames1.3.4 CPC drawer1.3.5 I/O connectivity: PCIe+ Generation 31.3.6 I/O subsystem1.3.7 I/O and special purpose features in the PCIe I/O drawer1.3.8 Storage connectivity1.3.9 Network connectivity1.3.10 Coupling and Server Time Protocol connectivity1.3.11 Cryptography1.4 Reliability, availability, and serviceability1.5 Hardware Management Consoles and Support Elements1.6 Operating systems1.6.1 Supported operating systems1.6.2 IBM compilers