https://en.wikipedia.org/wiki/NonStop_(server_computers) Jump to content [ ] Main menu Main menu move to sidebar hide Navigation * Main page * Contents * Current events * Random article * About Wikipedia * Contact us * Donate Contribute * Help * Learn to edit * Community portal * Recent changes * Upload file [wikipe] Wikipedia The Free Encyclopedia Search [ ] Search [ ] Appearance * Create account * Log in [ ] Personal tools * Create account * Log in Pages for logged out editors learn more * Contributions * Talk Contents move to sidebar hide * (Top) * 1 History * 2 Software * 3 Hardware * 4 See also * 5 References * 6 Sources * 7 External links [ ] Toggle the table of contents NonStop (server computers) [ ] 7 languages * Catala * Deutsch * Espanol * frsy * Magyar * Ri Ben Yu * Suomi Edit links * Article * Talk [ ] English * Read * Edit * View history [ ] Tools Tools move to sidebar hide Actions * Read * Edit * View history General * What links here * Related changes * Upload file * Special pages * Permanent link * Page information * Cite this page * Get shortened URL * Download QR code * Wikidata item Print/export * Download as PDF * Printable version Appearance move to sidebar hide From Wikipedia, the free encyclopedia Family of fault-tolerant servers NonStop (server computers) Developer Hewlett Packard Enterprise Manufacturer Hewlett Packard Enterprise Type Computer Server Availability 1976 to current Operating system NonStop OS Predecessor Tandem Computers Inc. NonStop is a series of server computers introduced to market in 1976 by Tandem Computers Inc.,^[1] beginning with the NonStop product line .^[2] It was followed by the Tandem Integrity NonStop line of lock-step fault-tolerant computers, now defunct (not to be confused with the later and much different Hewlett-Packard Integrity product line extension). The original NonStop product line is currently offered by Hewlett Packard Enterprise since Hewlett-Packard Company's split in 2015. Because NonStop systems are based on an integrated hardware/software stack, Tandem and later HPE also developed the NonStop OS operating system for them. NonStop systems are, to an extent, self-healing. To circumvent single points of failure, they are equipped with almost all redundant components. When a mainline component fails, the system automatically falls back to the backup. These systems can be used by banks, stock exchanges, payment applications, retail companies, energy and utility services, healthcare organizations, manufacturers, telecommunication providers, transportation, and other enterprises requiring extremely high uptime .^[citation needed] History [edit] Originally introduced in 1976 by Tandem Computers Inc., the line was later owned by Compaq (from 1997), Hewlett-Packard Company (from 2003)^[3] and Hewlett Packard Enterprise (since 2015). In 2005, the HP Integrity "NonStop i" (or TNS/E) servers, based on Intel Itanium microprocessors, was introduced. In 2014, the first systems "NonStop X" (or TNS/X), based on Intel x86-64 processors, were introduced. Sales of the Itanium-based systems ended in July 2020.^[4] Early NonStop applications had to be specifically coded for fault tolerance. That requirement was removed in 1983 with the introduction of the Transaction Monitoring Facility (TMF), along with Pathway transaction management software and SCOBOL applications (or, later, NonStop Tuxedo transaction management software), which handles the various aspects of fault tolerance on the system level. Software [edit] NonStop OS is a message-based operating system designed for fault tolerance. It works with process pairs and ensures that backup processes on redundant CPUs take over in case of a process or CPU failure. Data integrity is maintained during those takeovers; no transactions or data are lost or corrupted. The operating system as a whole is branded NonStop OS and includes the Guardian layer, which is a low-level component of the operating system and the Open System Services (OSS) personality which runs atop this layer, which implements a Unix-like interface for other components of the OS to use. The operating system and application are both designed to support the fault tolerant hardware. The operating system continually monitors the status of all components, switching control as necessary to maintain operations. There are also features designed into the software that allow programs to be written as continuously available programs. That is accomplished using a pair of processes where one process performs all the primary processing and the other serves as a "hot backup", receiving updates to data whenever the primary reaches a critical point in processing. Should the primary stop, the backup steps in to resume execution using the current transaction.^[5] The systems support relational database management systems like NonStop SQL and hierarchical databases such as Enscribe. Languages supported include Java,^[6] C, C++,^[6] COBOL, SCOBOL (Screen COBOL), Transaction Application Language (TAL), etc. It uses the scripting and job control language TACL, and is written in TAL and C. Hardware [edit] [220px-TNSII]A NonStop server in 1987. The HPE Integrity NonStop computers are a line of fault-tolerant, message-based server computers based on the Intel Xeon processor platform,^[4] and optimized for transaction processing. Average availability levels of 99.999% have been observed.^[7] NonStop systems feature a massively parallel processing (MPP) architecture and provide linear scalability. Each CPU runs its own copy of the OS, and systems can be expanded up to over 4000 CPUs. This is a shared-nothing architecture -- a "share nothing" arrangement also known as loosely coupled multiprocessing. Due to the integrated hardware/software stack and a single system image for even the largest configurations, system management requirements for NonStop systems are rather low. In most deployments there is just a single production server, not a complex server farm.^ [citation needed] Most customers also have a backup server in a remote location for disaster recovery. There are standard products to keep the data of the production and the backup server in sync, for example, HPE's Remote Database Facility (RDF),^[8] hence there is fast takeover and little to no data loss also in a disaster situation with the production server being disabled or destroyed. HP also developed a data warehouse and business intelligence server line, HP Neoview, based on the NonStop line. It acted as a database server, providing NonStop OS and NonStop SQL, but lacked the transaction processing functionality of the original NonStop systems. The line was retired, and no longer marketed, as of 24 January 2011.^ [9] See also [edit] * List of compilers for a partial list of NonStop (Tandem) compilers * List of computer hardware manufacturers * Master-checker * Reliability engineering * Stratus Technologies * Tandem Advanced Command Language References [edit] 1. ^ "History of TANDEM COMPUTERS, INC. - FundingUniverse". fundinguniverse.com. Retrieved 1 March 2023. 2. ^ Katzman, J. A. (1977). System Architecture for NonStop Computing. Cupertino, California (also published in Compcon, 1977 pp. 77-80): Tandem Computers, Incorporated. pp. Chapter 29.{{cite book}}: CS1 maint: location (link) 3. ^ Shankland, Stephen. "Top-end server group comes home to HP". CNET. Retrieved 16 February 2023. 4. ^ ^a ^b "HPE NonStop family of systems" (PDF). 5. ^ HP NonStop Server Security: A Practical Handbook. Digital Press. 6 October 2003. ISBN 978-1555583149. 6. ^ ^a ^b "Engineered for the highest availability - HPE NonStop family of systems brochure" (PDF). p. 10. 7. ^ "Compare system availability in the real world". Hewlett-Packard. October 2006. Archived from the original on 12 July 2011. Retrieved 7 August 2010. 8. ^ "Engineered for the Highest Availability" (PDF). July 2020. p. 14. Retrieved 25 February 2023. 9. ^ Morgan, Timothy Prickett. "HP euthanizes Neoview data warehouse iron". theregister.com. Retrieved 27 April 2023. Sources [edit] * Siewiorek, Daniel P.; Swarz, Robert S. (1998). Reliable Computer Systems. A K Peters, Ltd. pp. 586-625. ISBN 1-56881-092-X. * Horst, R.W. (February 1995). "TNet: a reliable system area network". IEEE Micro. 15: 37-45. doi:10.1109/40.342016. * Horst, Robert W.; Harris, Richard L.; Jardine, Robert L. (1990). "Multiple instruction issue in the NonStop Cyclone processor". Proceedings of the 17th Annual International Symposium on Computer Architecture. pp. 216-226. doi:10.1109/ISCA.1990.134528. * Bernick, D. (2005). "NonStop advanced architecture". Proceedings of the 2005 International Conference on Dependable Systems and Networks. doi:10.1109/DSN.2005.70. * Kim, Won (March 1984). "Highly available systems for database applications". ACM Computing Surveys. 16: 71-98. doi:10.1145/ 861.866. S2CID 4397686. External links [edit] * HPE NonStop * v * t * e Compaq * Acquired by Hewlett-Packard in 2002; existing product lines and intellectual property split between HP Inc. and Hewlett Packard Enterprise in 2015 * Rod Canion Founders * Jim Harris * Bill Murto * Ben Rosen Directors * Michael Capellas Corporate * Rod Canion aspects Executive * Eckhard Pfeiffer officers * Ben Rosen * Michael Capellas * Microcom (1997) Acquisitions * Tandem Computers (1997) * DEC (1998) * Zip2 (1999) * SystemPro XL * ProLiant Servers * NonStop * AlphaServer * SystemPro * ProSignia Workstations * Professional Workstation * AlphaStation * ProLinea * Deskpro Business + 386 Desktops * Evo Consumer * Presario * Portable + 1st generation o Plus o 286 + II + III + 386 Pre-acquisition + 486 (1982-2002) Classic * SLT * LTE + 1st Laptops generation Compaq + Lite logo + Elite + 5000 series * Contura Hardware * ProSignia Business * Armada * Evo Consumer * Presario + 1200 Internet * MSN Companion appliances * iPAQ desktop * Concerto Handhelds * Contura Aero and * Aero sub-notebooks * C series * tc1000 * iPAQ handheld * HP ProLiant Servers * HP NonStop * HP Compaq (2003-2007) High-end * HP Compaq Elite (2007-2012) Post-acquisition (2002-2013) Laptops * Compaq Presario and (2003-2013) desktops Low-end + R3000 * HP Compaq Pro (2007-2013) Handhelds * HP iPAQ * HP Compaq TC Instruction set * DEC Alpha architectures * AltaVista * OpenVMS Software * TACL * Tru64 UNIX * # DEC hardware + # video terminals * # DEC operating systems * # HP * v * t * e Hewlett-Packard * HP Inc. * Hewlett Packard Enterprise * Bill Hewlett Founders * David Packard * Marc Andreessen * Mohamed M. Atalla * Shumeet Banerji * Raj Gupta Directors * Raymond J. Lane * Ann Livermore * Gary M. Reiner * Patricia F. Russo (Chairwoman) * Jim Skinner * Meg Whitman * Todd Bradley * Dave Donatelli * Martin Fink * Henry Gomez * John Hinshaw Executive * Marty Homlish officers * George Kadifa * Tracy Keogh * Cathie Lesjak * Mike Nefkens * Antonio Neri * John F. Schultz * Bill Veghte * BladeSystem * Integrity Servers + Superdome * ProLiant HPE * NonStop * HPE Storage Storage + HPE XP + HPE 3PAR * ProBook Business * EliteBook laptops * ZBook Computer hardware * ProDesk products Business * EliteDesk desktops * Z workstations HP Inc. * OmniBook * Pavilion * Spectre * ENVY Consumer PCs * OMEN * Stream * HP Chromebox * Essential laptops * Aruba Networks * Calculators * Teradici * HyperX Consumer * Plantronics electronics and accessories * Deskjet Photography and * LaserJet printing * Scitex * Photosmart * Colorado Memory Systems * Indigo Digital Press Other divisions * Scitex [110px-HP_logo_] * Systems Insight Manager * HPE Networking * HyperSpace OS * HP-UX Software * HP Data Protector * NonStop OS * NonStop SQL * HP Compaq + HP Compaq Elite + TC Compaq line * Presario * Evo * iPAQ * AlphaServer * Domain/OS * LightScribe * MPE Software * OpenVMS (sold) * HP QuickPlay * Tru64 UNIX * WebOS (sold) Discontinued * HP Cloud products Services * HP CloudSystem * HPE Helion * Jornada * OmniGo * iPod+HP * VoodooPC * TouchPad * Internet Advisor Hardware * Vectra * Brio * Mini * Slate * TouchSmart * Sprout * NetServer * Kayak * VoodooPC * ProCurve Closed * Sold: divisions + Palm + Snapfish * List of HP executives * Co-founders Bill Hewlett and David Packard * John A. Young HP CEOs * Lewis E. Platt * Carly Fiorina * Mark Hurd * Leo Apotheker * Meg Whitman * HP Garage Assets * HP Labs * HP Atalla * Acquisitions * HP spying scandal See also * HP Inc. assets * Products * Mission: SPACE * Steve Wozniak * Retrieved from "https://en.wikipedia.org/w/index.php?title=NonStop_ (server_computers)&oldid=1237236754" Categories: * Hewlett Packard Enterprise * Computer-related introductions in 1976 * Computer architecture * Fault-tolerant computer systems * HPE servers * HP software * MIPS architecture * Proprietary operating systems * X86-64 operating systems Hidden categories: * CS1 maint: location * Articles with short description * Short description with empty Wikidata description * Use dmy dates from October 2023 * All articles with unsourced statements * Articles with unsourced statements from November 2022 * This page was last edited on 28 July 2024, at 20:21 (UTC). * Text is available under the Creative Commons Attribution-ShareAlike License 4.0 ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia(r) is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. * Privacy policy * About Wikipedia * Disclaimers * Contact Wikipedia * Code of Conduct * Developers * Statistics * Cookie statement * Mobile view * Wikimedia Foundation * Powered by MediaWiki *