 In December, 2001, IBM designated all its mainframes with the name eServer zSeries, with the e depicted in IBM's well-known red trademarked symbol. Nonetheless, IBM didn't give the previous servers new names, so the term zSeries now popularly refers only to IBM's first line of 64-bit mainframes, starting with the zSeries 900. In July 2005, IBM rebranded the server line again, to System z, but again not renaming previous servers. At the same time IBM announced a new brand name (System z9) using it to announce the latest generation System z9-109 servers. Image File history File links IBM_logo. ...
2001: A Space Odyssey. ...
International Business Machines Corporation (IBM, or colloquially, Big Blue) NYSE: IBM (incorporated June 15, 1911, in operation since 1888) is headquartered in Armonk, NY, USA. The company manufactures and sells computer hardware, software, infrastructure services and consulting services. ...
Mainframes (often colloquially referred to as big iron) are large and expensive computers used mainly by government institutions and large companies for legacy applications, typically bulk data processing (such as censuses, industry/consumer statistics, ERP, and bank transaction processing). ...
Since December, 2001, IBM designates all its mainframes with the name eServer zSeries, with the e depicted in IBMs well-known red trademarked symbol. ...
The term "zSeries" is still the most popular way to refer to all IBM mainframe servers, probably because the zSeries, introducing 64-bit to the mainframe world, was a breakthrough in raw processor performance and marked a historic milestone since it was the first implementation of the z/Architecture, a big departure from the previous architectures which were limited to 31-bit addressing, which was introduced by the System/370 in the 1970s. In its 64-bit mode the CPU became free from this legacy and its legacy became history. In computing, a 64-bit component is one in which data are processed or stored in 64-bit units (words). ...
z/Architecture (formerly known as ESAME) refers to IBMs 64-bit computing architecture for its top-of-the-line enterprise servers. ...
ESA/390 (Enterprise Systems Architecture/390) is IBMs 31-bit mainframe computing design, copied by Amdahl, Hitachi, and Fujitsu among other competitors. ...
The System/370 is a model range of IBM mainframes introduced in the early 1970s as the successors to the System/360 family. ...
The IBM eServer zSeries line succeeded the IBM System/390 (S/390 for short) which were based on the ESA/390 architecture while ensuring full compatibility to it. Thus, zSeries servers are the direct, lineal descendents of the IBM System/360, announced in 1964, and the 1970s System/370. Applications written for the 24-bit-addressing/32-bit-data System/360 can still run, unmodified, on the newest System z9 over four decades later, with few exceptions. In computer architecture, 31-bit is an adjective used to describe integers, memory addresses or other data units that are at most 31 bits (just shy of 4 octets) wide, or to describe CPU and ALU architectures based on registers, address buses, or data buses of that size. ...
System 360 Model 65 operators console, with register value lamps and toggle switches (middle of picture) and emergency pull switch (upper right). ...
For the Nintendo 64 emulator, see 1964 (Emulator). ...
The System/370 is a model range of IBM mainframes introduced in the early 1970s as the successors to the System/360 family. ...
In computer architecture, 24-bit is an adjective used to describe integers, memory addresses or other data units that are at most 24 bits (3 octets) wide, or to describe CPU and ALU architectures based on registers, address buses, or data buses of that size. ...
32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32-bit chunks. ...
Major features of the eServer zSeries family:
- Based on z/Architecture (64-bit real and virtual addresses)
- Offers up to 32 central processors (CPs) per frame (rack) coupled in up to a 32-frame Sysplex — with each frame physically separated up to 100 kilometers
- Supports the Linux, z/OS, z/VM, z/VSE, z/TPF, and MUSIC/SP operating systems
- S/390 ESA (31-bit) applications are fully compatible with z/Architecture
- Some models introduced multiple I/O channel subsystems (exceeding the previous 256 channel limit) and zAAPs
The System z9 servers add on top of that: In computing, a 64-bit component is one in which data are processed or stored in 64-bit units (words). ...
In IBM mainframe computers, a Systems Complex, commonly called a Sysplex, is one or more System/390 processors joined into a single unit, sharing the same Sysplex name and CDS. Put another way, a Sysplex is an instance of a computer system running on one or more physical computers. ...
Tux is the Linux mascot. ...
z/OS Welcome Screen seen through a terminal emulator The title of this article begins with a capital letter due to technical limitations. ...
VM is an early and influential virtual machine operating system from IBM, apparently the first true virtual machine system. ...
VSE (Virtual Storage Extended) is an operating system on the IBM System/370 and System/390 mainframe computers. ...
TPF is also the NASA Terrestrial Planet Finder project. ...
MUSIC/SP (Multi-User System for Interactive Computing / System Product) was developed at McGill University in the late 1960s from an IBM system called RAX (Remote Access). ...
An operating system is a special computer program that manages the relationship between application software, the wide variety of hardware that makes up a computer system, and the user of the system. ...
zAAP is the zSeries Application Assist Processor, a mainframe processor introduced by IBM in 2004. ...
The System z9-109 Model S54, with up to 54 "characterizable" PUs (processors), is currently the most powerful IBM mainframe available, reportedly capable of performing approximately 18,660,000,000 core instructions per second. A single S54 can typically process one billion or more business transactions per day — double the throughput of its predecessor. The 54 PUs can be characterized (configured) for a variety of purposes including general purpose processing (CPs), zAAPs, IFLs, and ICFs (coupling facilities). zIIP is an acronym for the IBM System z9 Integrated Information Processor. ...
General Designer(s) Vincent Rijmen and Joan Daemen First published 1998 Derived from Square (cipher) Cipher(s) based on this design Crypton (cypher), Anubis (cipher), GRAND CRU Algorithm detail Block size(s) 128 bits note Key size(s) 128, 192 or 256 bits note Structure Substitution-permutation network Number of...
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An IBM mainframe is a large, high-performance computer made by International Business Machines (IBM). ...
zAAP is the zSeries Application Assist Processor, a mainframe processor introduced by IBM in 2004. ...
The Integrated Facility for Linux (IFL) is an IBM mainframe processor dedicated to running the Linux operating system, with or without z/VM. IFLs are one of two types of mainframe processors expressly designed to reduce software costs. ...
A direct comparison of zSeries servers with other computing platforms is difficult. zSeries servers are unique in providing processing power for business-critical, high volume transaction processing and databases. For example, zSeries servers offload such functions as I/O processing, cryptography, memory control, and various service functions (such as accounting and logging) to dedicated processors. These "extra" processors are in addition to the (up to) 54 main CPs per frame. The zSeries servers also effectively execute every instruction twice in order to assure processing integrity. If the instruction results differ, the zSeries server retries the instruction. If the instruction still fails, the zSeries/z9 server will shut down the failing processor and shift workload, "in flight," to any surviving processors, including one or more spares. The IBM mainframe then "calls home" (automatically places a service call to IBM), and an IBM service technician soon arrives with a replacement part (possibly even a new processor book, consisting of a group of processors). With System z9 servers, the technician installs the new book and removes the old one without interruption to running applications. (Note that IBM mainframe processors have a reported 40 year MTBF.) Similar design redundancies exist in memory, I/O, power, cooling, and other subsystems. All these features exist at the hardware and microcode level, without special application programming. The same concepts extend to coupled frames separated by up to 100 kilometers in a Geographically Dispersed Parallel Sysplex. In engineering and telecommunication, the mean time between failures (MTBF) is the average time a system will operate without a failure. ...
A microprogram is a program consisting of microcode that controls the different parts of a computers central processing unit (CPU). ...
GDPS is a Disaster Recovery manager. ...
zSeries servers are well regarded for their reliability, availability, integrity, and mixed workload performance -- characteristics not typically measured in computing benchmarks. They tend to have higher costs of acquisition ("price") and lower costs of ownership ("TCO") than other platforms, especially when running a variety of business-critical applications concurrently (so-called mixed workload). They are the enterprise workhorses in numerous industries including government, financial services, retail, and manufacturing. Total cost of ownership (TCO) is a financial estimate designed to help consumers and enterprise managers assess direct and indirect costs related to the purchase of any capital investment, such as (but not limited to) computer software or hardware. ...
See also
The following is a list of products from the International Business Machines (IBM) office and data processing equipment company, spanning from early-to-mid-20th-century punched card machinery, time clocks, and typewriters, via mainframe computers and minicomputers, to microprocessors, PCs, laptop PCs, and more. ...
Linux on zSeries (or Linux on System z9) is the preferred collective term for the Linux operating system and GNU/Linux software compiled to run on IBM mainframes, especially zSeries servers. ...
zAAP is the zSeries Application Assist Processor, a mainframe processor introduced by IBM in 2004. ...
In IBM zSeries and System z9 mainframe computers, with two Direct access storage device (DASD) control units connected through dedicated connections, Peer to Peer Remote Copy or PPRC is the protocol to mirror a DASD volume in one control unit (the primary) to a DASD volume in the other control...
Extended Remote Copy or XRC is an IBM zSeries and System z9 mainframe computer technology for data replication. ...
In IBM mainframe computing, a Logical Partition, commonly called an LPAR, is a virtualized computing environment abstracted from all physical devices. ...
Hipersocket is an IBM technology for high-speed communications between partitions on a server with a hypervisor. ...
ESCON (or Enterprise Systems Connection) is an optical serial interface between IBM mainframe computers and peripheral devices such as storage and tape drives. ...
In computing, FICON (Fiber Connectivity) is an input and output protocol used in IBM mainframe computers and peripheral devices such as storage arrays and tape drives. ...
In IBM mainframe computers, a Systems Complex, commonly called a Sysplex, is one or more System/390 processors joined into a single unit, sharing the same Sysplex name and CDS. Put another way, a Sysplex is an instance of a computer system running on one or more physical computers. ...
In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together in a single system image, usually with z/OS. A Parallel Sysplex combines data sharing (typically using Peer to Peer Remote Copy) and parallel computing to allow a cluster of up to 32 computers to share a...
GDPS is a Disaster Recovery manager. ...
External links - IBM: zSeries/z9 Mainframes
- IBM: System z9 109
- The Hercules System/370, ESA/390, and z/Architecture Emulator
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