NonStop
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The NonStop are a line of fault-tolerant server computers, optimized for transaction processing and providing an extreme[citation needed] level of availability and data integrity.
These systems are often used by banks, stock exchanges, telecommunication providers and other enterprises requiring very reliable computer systems. Originally introduced in 1976 by Tandem Computers Inc., the line was later owned by Compaq (from 1997) and Hewlett-Packard (since 2003). In 2005, the current product line of HP Integrity NonStop servers, based on Intel Itanium microprocessors, was introduced.
NonStop systems are based on an integrated hardware/software stack. They are designed with redundant components and automatic reconfiguration in the event of a component failure, to prevent against "single-point failures" (see Reliability engineering). The systems run the NonStop OS operating system and the NonStop SQL database management system.
HP also develops a data warehouse and business intelligence server line, HP Neoview, based on the NonStop line. It acts as a database server, providing NonStop OS and NonStop SQL, but lacks the transaction processing functionality of the original NonStop systems.
[edit] Sources
- Siewiorek, Daniel P.; Swarz, Robert S. (1998). Reliable Computer Systems, A K Peters, Ltd., ISBN 156881092X. pp. 586–625.
- Horst, R.W. (February 1995). "TNet: a reliable system area network". IEEE Micro.
- 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.
- Bernick, D. (2005). "NonStop advanced architecture". Proceedings of the 2005 International Conference on Dependable Systems and Networks.
- Kim, Won (March 1984). "Highly available systems for database applications". ACM Computing Surveys.
