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Fault recovery in systems utilizing redundant processor arrangements

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06F-011/00
출원번호 US-0518055 (1990-05-02)
발명자 / 주소
  • Rysko Glenn M. (Cupertino CA) Jordan William C. (Cupertino CA)
출원인 / 주소
  • ROLM Systems (Santa Clara CA 02)
인용정보 피인용 횟수 : 43  인용 특허 : 0

초록

Apparatus to prevent endless switchover attempts between processors in redundant processor systems where each processor resets an associated watch dog timer (WDT). Whenever a WDT times out, WDT sends a restart signal to its associated processor and a failure signal to switchover control logic. The s

대표청구항

Apparatus for use in a system comprised of a first processing system and a second processing system, the first and second processing systems being redundant processing systems whereby one of the first and second processing systems is an active processing system and the other one of the first and sec

이 특허를 인용한 특허 (43)

  1. Mitsuhashi, Kenji; Takajitsuko, Ryo; Mitsuze, Kiyohumi, Active/standby dual apparatus and highway interface circuit for interfacing clock from highway.
  2. Canter, Jeffrey B., Automatic protection switching.
  3. Takeda Hirofumi (Yokohama JPX) Kurihara Takashi (Yokohama JPX), Automatic switching method of a right of management/control for shared-storage unit.
  4. Goodrum Alan L. (Tomball TX) Kotzur Gary B. (Spring TX) Lantz Kurt C. (Spring TX) Heinrich David F. (Tomball TX) Wilson Jeffrey T. (Houston TX), Circuit for reassigning the power-on processor in a multiprocessing system.
  5. Galy Richard (Charenton FRX) Giraud Alain (Orsay FRX), Computing unit having a plurality of redundant computers.
  6. Orimo Masayuki (Kawasaki JPX) Mori Kinji (Machida JPX) Hirasawa Shigeki (Kawasaki JPX) Fujise Hiroshi (Yokohama JPX) Takeuchi Masuyuki (Fujisawa JPX) Suzuki Hitoshi (Owariasahi JPX), Data management method in a distributed processing system.
  7. Joubert Philippe,FRX ; Leconte Thierry,FRX ; Rochat Bruno,FRX, Data processing machine network architecture.
  8. Aguilera, Marcos K.; Chen, Wei; Toueg, Sam, Failure detector with consensus protocol.
  9. Hemphill John M. ; Stewart Gregory Mart ; Lawler Thomas S., Fault tolerant multiple network servers.
  10. James R. Bergsten, Fault-tolerant access to storage arrays using active and quiescent storage controllers.
  11. Morikawa Takahiro,JPX, Fault-tolerant computer system capable of preventing acquisition of an input/output information path by a processor in.
  12. Morikawa Takahiro (Tokyo JPX), Fault-tolerant computer system capable of preventing acquisition of an input/output information path by a processor in w.
  13. Wyld Brian Christopher,FRX ; Rosset Jean-Michel,FRX ; Sauvage Pierre,FRX ; Pierrot Denis,FRX ; Rondel Pierre D. M.,FRX, Generic fault tolerant platform.
  14. Dellacona, Richard, High speed fault tolerant mass storage network information server.
  15. Dellacona,Richard, High speed information processing and mass storage system and method, particularly for information and application servers.
  16. Leigh James J., Method and apparatus for controlling available processor capacity.
  17. Goodrum Alan L. ; Autor Jeffrey S. ; Culley Paul R. ; Miller Joseph P. ; Tavallaei Siamak ; Basile Barry P. ; Richard Elizabeth A. ; Rose Eric E., Method and apparatus for identifying faulty devices in a computer system.
  18. Menon, Jaishankar Moothedath, Method and apparatus for processing read requests in a shared disk system.
  19. Mbarki, Imed E., Method and apparatus for warm starting a system where the system includes region(s) of software code incapable of warm starting.
  20. Pfeiffer, Wolfgang; Weiberle, Rienhard; Mueller, Bernd; Hartwich, Florian; Harter, Werner; Angerbauer, Ralf; Boehl, Eberhard; Kottke, Thomas; von Collani, Yorck; Gmehlich, Rainer; Graebitz, Karsten, Method for running a computer program on a computer system.
  21. Bruwer, Frederick Johannes, Method of and apparatus for transferring data.
  22. Jukka Pentikainen FI, Method of preventing data inconsistency between master exchange data and backup exchange data.
  23. Ekrot Alexander C. (Humble TX) Singer James H. (Houston TX) Hemphill John M. (Spring TX) Autor Jeffrey S. (Houston TX) Galloway William C. (Houston TX) Alexander Dennis J. (Spring TX), Multi-server fault tolerance using in-band signalling.
  24. Ekrot Alexander C. ; Singer James H. ; Hemphill John M. ; Autor Jeffrey S. ; Galloway William C. ; Alexander Dennis J., Multi-server fault tolerance using in-band signalling.
  25. Dellacona Richard, Network information server.
  26. Beneditz, Bruce D.; Stoneback, Russell G.; Bouton, Marc A.; Spear, Kenneth; Dickey, John A., Power distribution assembly with redundant architecture.
  27. Chan, Ho-Kuo; Siraj, Shahnawaz; Beaudin, Andre, Radio interrupt.
  28. Cook William B. ; Flood Mark A. ; Taylor Mark E., Redundant automation controller permitting replacement of components during operation.
  29. Derek William Ashcroft GB; Geoffrey Robert Atkinson GB; Philip McKirgan GB; Stephen Paul Tickhill GB, Resilience in a multi-computer system.
  30. Lenner, Joseph A.; Vasko, David A.; Vandesteeg, Kerry W.; Hall, Kenwood H., Safety network for industrial controller having reduced bandwidth requirements.
  31. Ito Kazuhiko,JPX ; Mizuno Masahiro,JPX ; Yamamoto Hitoshi,JPX, Shared data storage for two hosts with a storage manager that permits each host to exclusively read operating system.
  32. Alexander, Curtis R.; Perez, Alonso; Doan, Thang, Standby SBC backplane.
  33. Alexander, Curtis R.; Perez, Alonso; Doan, Thang, Standby SBC backplate.
  34. Gavin, Scott Michael, Standby processor with improved data retention.
  35. Koichi Okazawa JP; Toshiaki Tarui JP; Yasuyuki Okada JP, Switch control method and apparatus in a system having a plurality of processors.
  36. Goodrum Alan L. ; Sides Chi Kim ; Miller Joseph P. ; Cox B. Tod ; Cook M. Damian ; Sanders Michael C., Switching control in a fault tolerant system.
  37. Lerman, Kenneth, System and method for the use of reset logic in high availability systems.
  38. Jadav Divyesh ; Kenchammana-Hosekote Deepak R. ; Menon Jaishankar Moothedath, System for changing the parity structure of a raid array.
  39. Day, Paul Reuben; Muras, Brian Robert, System for on demand task optimization.
  40. Jadav Divyesh ; Kenchammana-Hosekote Deepak R. ; Menon Jaishankar Moothedath, System for updating data in a multi-adaptor environment.
  41. Olmos, Alfredo; Maltione, Ricardo; da Silva, Eduardo Ribeiro, Systems and methods for detecting interference in an integrated circuit.
  42. Jaishankar Moothedath Menon, Updating and reading data and parity blocks in a shared disk system.
  43. Fiske, Robert, Upgrade of a program.
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