IBM 890 manual z/OS, Integrated system services

z/OS

Fiber Quick Connect (FQC): FQC, a zSeries confi guration option, helps reduce the cable bulk associated with the installation of potentially 240 (z800) to 256 (z900) to 420 (z890/z990) ESCON channels in one I/O cage. Fiber har- nesses, which are factory-installed, enable connection to IBM’s Fiber Transport System (FTS) direct-attach fi ber trunk cables. Each trunk can have up to 72 fi ber pairs. Four trunks can displace the 240 to 256 fi ber optic cables on the z800 or z900.

In planning for zSeries systems, refer to Planning for: S/390 Fiber Optic Links (ESCON, FICON, Coupling Links, and Open System Adapters), GA23-0367, and the Installa- tion Manual Physical Planning (IMPP) manual. Refer to the services section of Resource Link for further details on the zSeries Fiber Cabling Service options and the Fiber Quick Connect confi guration option.

Access Resource Link at ibm.com/servers/resourcelink.

While zSeries servers are supported by a number of dif- ferent operating systems, their most advanced features are powered by z/OS. z/OS is the foundation for the future of zSeries, an integral part of the z/Architecture designed and developed to quickly respond to the demanding qual- ity of service requirements for on demand businesses.

z/OS is the fl agship mainframe operating system based on the 64-bit z/Architecture. It is designed to deliver the highest qualities of service for enterprise transactions and data, and extends these qualities to new applications using the latest software technologies. It provides a highly secure, scalable, high-performance base on which to deploy Inter- net and Java technology-enabled applications, providing a comprehensive and diverse application execution environ- ment. z/OS takes advantage of the latest software technolo- gies: new object-oriented programming models that permit the rapid design, development and deployment of applica- tions essential to on demand businesses. It helps protect your investment in your present mainframe applications by providing options for modernizing existing applications and integrating them with new on demand applications, all within a single image of z/OS. It provides a solid base for applications, supporting new technologies such as Enterprise JavaBeans™, XML, HTML, and Unicode, Parallel Sysplex clustering, highly available TCP/IP networking and dynamic workload and resource balancing.

Integrated system services

z/OS helps make critical data and processing functions accessible to end users regardless of their location in the heterogeneous on demand world. The z/OS base includes z/OS Communications Server, which enables world class TCP/IP and SNA networking support, including mainframe dependability, performance, and scalability; highly secure connectivity; support for multiple protocols; and effi cient use of networking assets.

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