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System z9 is the newest and most powerful line of IBM mainframes. It was announced on July 25, 2005 and the first models were available on September 16, 2005. The System z9 also marks the end of the previously used eServer zSeries naming convention. Image File history File linksMetadata IBM-System-z9. ...
Image File history File linksMetadata IBM-System-z9. ...
For other uses, see IBM (disambiguation). ...
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). ...
International Business Machines Corporation (IBM, or colloquially, Big Blue) (NYSE: IBM) (incorporated June 15, 1911, in operation since 1888) is headquartered in Armonk, New York, USA. The company manufactures and sells computer hardware, software, and services. ...
Since December, 2001, IBM designates all its mainframes with the name eServer zSeries, with the e depicted in IBMs well-known red trademarked symbol. ...
Background
System z9 is the latest mainframe to use z/Architecture, previously known as ESAME. z/Architecture is a 64-bit architecture which replaces the previous 31-bit-addressing/32-bit-data ESA/390 architecture while remaining completely compatible with it as well as the older 24-bit-addressing/32-bit-data System/360 architecture. The primary advantage of this arrangement is that intensive applications like DB2 are no longer bound by 31-bit memory restrictions while older applications can run without modifications. z/Architecture (formerly known as ESAME) refers to IBMs 64-bit computing architecture for its top-of-the-line enterprise servers. ...
ESAME is an obsolete acronym meaning Enterprise Systems Architecture Millenium Edition. ...
In computing, a 64-bit component is one in which data are processed or stored in 64-bit units (words). ...
ESA/390 (Enterprise Systems Architecture/390) is IBMs 31-bit mainframe computing design, copied by Amdahl, Hitachi, and Fujitsu among other competitors. ...
32-bit is a term applied to processors, and computer architectures which manipulate the address and data in 32-bit chunks. ...
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. ...
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. ...
System/360 Model 65 operators console, with register value lamps and toggle switches (middle of picture) and emergency pull switch (upper right). ...
DB2® is IBMs family of information management software products. ...
Name Change With the announcement of the System z9 Business Class server, IBM has renamed the System z9 109 as the System z9 Enterprise Class server. IBM documentation abbreviates them as the z9 BC and z9 EC, respectively.
Notable Differences
HMC The hardware management console (HMC) is the most direct and lowest level way to access a mainframe. It circumvents even the operating system running on the mainframe. All preceding zSeries mainframes used a modified version of OS/2 with custom software to provide the interface. System z9's HMC no longer uses OS/2, but instead uses a modified version of Linux with an OS/2 lookalike interface to ease transition as well as a new interface. Unlike the previous HMC application on OS/2, the new HMC is web based which means that even local access is done via a web browser. Remote HMC access is available, although only over an SSL encrypted HTTP connection. The web based nature means that there is no longer a difference between local console access and remote access, which means a remote user potentially has full control. IBM refers to the new HMC as a "closed platform" which does not allow the user to install software or access the command line interface to increase security and stability. The HMC is also firewalled by default with a minimal number of open ports for remote access. OS/2 is an operating system created by Microsoft and IBM and later developed by IBM exclusively. ...
Linux (also known as GNU/Linux) is a computer operating system. ...
Icons for Web browser shortcuts on an Apple computer (Safari, Internet Explorer, and Firefox). ...
Secure Sockets Layer (SSL) and Transport Layer Security (TLS), its successor, are cryptographic protocols which provide secure communications on the Internet. ...
Hypertext Transfer Protocol (HTTP) is the method used to transfer or convey information on the World Wide Web. ...
Screenshot of a sample Bash session, taken on Gentoo Linux. ...
Program Directed Re-IPL Program Directed Re-IPL is a new feature for Linux on System z9. It allows Linux systems running in an LPAR to re-IPL themselves without operator intervention. This is accomplished by the System z9 storing the device and load parameters used to initially IPL the system. 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. ...
In IBM mainframe computing, a Logical Partition, commonly called an LPAR, is a virtualized computing environment abstracted from all physical devices. ...
DB2 and VSAM Features DB2 and VSAM achieve greater I/O performance thanks to a new System z9 feature called MIDAW. Also, the System z9 introduces the zIIP, a new type of processor that accelerates certain specific DB2 tasks. DB2® is IBMs family of information management software products. ...
Virtual Sequential Access Method (VSAM) is an IBM disk file storage scheme first used in the S/370 and virtual storage. ...
zIIP is an acronym for the IBM System z9 Integrated Information Processor. ...
Cryptography The System z9 adds Advanced Encryption Standard (AES) to the list of hardware-based cryptographic algorithms. Other hardware-boosted features include additional random number generation and SHA algorithms. This specialized encryption hardware means System z9 handily outperforms other platforms which much rely on encryption software across a broader range of cryptographic needs. 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...
LPARs The System z9 supports up to 60 LPARs, up from the previous maximum of 30. In IBM mainframe computing, a Logical Partition, commonly called an LPAR, is a virtualized computing environment abstracted from all physical devices. ...
Concurrent Book Replacement The System z9 supports nondisruptive processor replacement. That means a technician can replace an entire processor book without ending any applications and without restarting any operating systems. In most configurations a System z9 can even manage this feat without any reduction in performance or capacity for the running applications.
Models
Enterprise Class The System z9 Enterprise Class server, formerly known as the System z9 109, is flagship of the System z9 series. The 2094-S54 is the high end System z9 model and is able to achieve nearly twice the performance as the high end zSeries z990. It supports up to 54 processors and 512GB of RAM. A gigabyte (symbol GB) is a unit of measurement in computers of one thousand million bytes (the same as one billion bytes in the short scale usage). ...
Business Class On April 27, 2006, IBM announced the System z9 Business Class, also known as the z9 BC, as the successor to the zSeries z890 mainframe. IBM is positioning the z9 BC as a midrange system with a low cost of acquisition with up to twice the performance as the z890. The first z9 BCs are scheduled to be available on May 26, 2006 with several other models to be available on August 25, 2006. The z9 BC supports up to eight processors and requires at least one SAP which allows customers to pick up to seven others. While it can use general purpose central processors (CPs), IBM is more actively marketing the use of low cost dedicated processors such as IFLs, zAAPs, and the new zIIPs. The z9 BC comes with a minimum of 8GB of RAM and is expandable up to 64GB. IBM offers an upgrade path that allows current z800 and z890 customers to upgrade to a z9 BC, which can then be upgraded to a z9 EC if the extra capacity is required.
External links - IBM.com: Hardware Management Console Operations Guide - Version 2.9.0
- IBM.com: System z9 109 Sales Manual
- IBM.com: System z9 109 System Overview
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