Smoothly handling the data tsunami requires robust infrastructure that is designed specifically  for high-volume data transactions. To take advantage of new unstructured data,$^{1}$ businesses  on IBM Z can use application programming interfaces (APIs) that can help with creating and  delivering innovative services.  Linux on IBM Z, which is optimized for open source software, brings more value to the  platform. Linux on IBM Z supports a wealth of new products that are familiar to application  developers, such as Python, Scala, Spark, MongoDB, PostgreSQL, and MariaDB. By  accessing core business data directly on platform (without the need for ETL$^{2}$, and hence no  data offload off Z platform), you can develop new intelligent applications and business  processes. As your business technology needs evolve to compete in today’s digital economy, IBM stands  ready to help with intelligent, robust, and comprehensive technology solutions. The IBM  approach integrates server, software, and storage solutions to ensure that each member of  the stack is designed and optimized to work together. The new IBM z15™ leads that  approach by delivering the power and speed users demand, the security users and regulators  require, and the operational efficiency that maximizes your bottom line. Terminology note:  The remainder of this book uses the designation  CPC  to refer to the  central processor complex . The system is packaged in 19-inch format frames. With 1 - 4 frames, and processor and I/O  modular architecture, it provides flexible configuration and fit for purpose systems. IBM continues its technology leadership with the z15 server. The z15 server is built by using  the IBM modular multi-processor drawer design that supports 1 - 5 processor drawers per  CPC. Each processor drawer contains four Processor Unit (PU) single-chip modules (SCMs)  and one Storage Controller (SC) SCM.  Both SCMs are redesigned by using 14 nm FINFET SOI technology.$^{3}$ Each PU SCM has 12  processor units (PUs, or cores). In addition to SCMs, CPC drawers host memory DIMMs,  connectors for I/O, redundant power supplies, combined Flexible Service Processors and  Oscillators (FSP/OSC), and cooling manifolds. 4  IBM z15 (8561) Technical Guide 1 This data accounts for 80% of all data that is generated today and is expected to grow to over 93% by 2020. 2 Extract, Transform, Load (ETL) database operations that extract data from one or more databases, and transform  and load it into another database for analyzing data in a different context. 3 FINFET is the industry solution; SOI is the IBM solution for SER. 1.2.1 Processor and memory 1.2 z15 server highlights This section reviews some of the following most important features and functions of z15  (Driver 41) servers: GLYPH<SM590000> Processor and memory GLYPH<SM590000> Capacity and performance GLYPH<SM590000> Virtualization GLYPH<SM590000> I/O subsystem and I/O features GLYPH<SM590000> Reliability, availability, and serviceability design