Method and apparatus for implementing a workgroup server array

• US 6,715,100 B1
• Filed: 01/16/2001
• Issued: 03/30/2004
• Est. Priority Date: 11/01/1996
• Status: Expired due to Fees

• Current Assignee: Ivan Chung-Shung Hwang
• Original Assignee: Ivan Chung-Shung Hwang
• Inventors: Hwang, Ivan Chung-Shung
• Primary Examiner(s): Beausoliel, Robert
• Assistant Examiner(s): Bonzo, Bryce P.
• Application Number:
  US09/744,194
• Time in Patent Office: 1,169 Days
• Field of Search: 714/5, 714/11, 714/48, 709/219, 709/203, 709/225, 709/226
• US Class Current: 714/5.1
• CPC Class Codes: G06F 11/2007 using redundant communication media
• CPC Class Codes: G06F 11/2012 and using different communication protocols
• CPC Class Codes: G06F 11/2025 using centralised failover control functionality
• CPC Class Codes: G06F 11/2035 without idle spare hardware
• CPC Class Codes: G06F 11/2046 where the redundant components share persistent storage G06F11/2043 takes precedence

Abstract

A method and apparatus for implementing a workgroup server array ideal for web-based Intranet, Extranet and Internet applications. The inventive server array comprises a plurality of team/workgroup computers (408) equipped with work-group-based direct-access servers and modular controlling devices (1), creating workgroup-based fault-tolerant and fail-over capabilities, providing console-based monitoring and management support, and accommodating highly available and scalable web-based applications with optimal performance. These workgroup server arrays can be used as the basic building blocks to construct large-scale server clusters, so that more users can be served concurrently. Furthermore, workgroup-server-array-based architecture is created for building various highly available, scalable and mission critical server clusters, which enable distributed computing services for enerris-based Intranet, Extranet and Internet mission critical applications.

Claims

1. A multiple processor computer system comprising a plurality of TeamProcessors each having a multiple CPU computing platform, said platform having RAM and respective modules for interface with a monitor, audio, speaker, access ports, USB, network link, a workgroup peer-to-peer link, peripheral drives and a workgroup server link;

said workgroup server link of each said TeamProcessor being connected to a shared plurality of workgroup servers.

2. The computer system recited in claim 1 wherein each said workgroup server is a fault tolerant disk array.

3. The computer system recited in claim 1 further comprising at least one chassis housing at least four of said TeamProcessors and at least two of said workgroup servers.

4. The computer system recited in claim 1 comprising at least eight of said TeamProcessors and at least four of said workgroup servers;

each of said TeamProcessors being in communication with each of said workgroup servers.

5. The computer system recited in claim 1 further comprising at least one TeamPanel having a plurality of control CPUs, each CPU interfacing with a corresponding TeamProcessor, each CPU controlling a plurality of switches for selectively connecting the corresponding TeamProcessor to USB devices, a monitor, audio speakers, a keyboard, a mouse, a modem, a printer and serial devices.

6. The computer system recited in claim 5 further comprising a plurality of said TeamPanels cascaded together for interfacing an increased number of said TeamProcessors.

7. The computer system recited in claim 5 further comprising at least one additional one of said control CPUs designated as a first main control unit and providing supervision for access to shared buses and devices for said TeamProcessors and for load balancing among said TeamProcessors.

8. The computer system recited in claim 7 further comprising a second main control unit for failure mode backup of said first main control unit.

9. The computer system recited in claim 7 wherein one of said TeamProcessors, designated the TeamManager, controls said TeamPanel.

10. The computer system recited in claim 1 wherein at least one of said workgroup servers is devoted primarily to application file service and at least one other of said workgroup servers is devoted primarily to database file service.

11. The computer system recited in claim 10 wherein said application file service-devoted workgroup server provides a capability for servicing application-oriented requests.

12. The computer system recited in claim 10 wherein said database file service-devoted workgroup server provides a capability for servicing database-oriented requests.

13. The computer system recited in claim 10 wherein each of said workgroup servers provides for generating batch files written into a peripheral drive for fail-safe operation.

14. The computer system recited in claim 10 comprising at least another workgroup server providing both application file service and database file service for fail-safe operation.

15. The computer system recited in claim 1 wherein each TeamProcessor recognizes one workgroup server as primary and all remaining workgroup servers as secondary.

16. The computer system recited in claim 1 wherein said workgroup peer-to-peer link is based upon Ethernet or SCSI interfaces and wherein said workgroup server link is based upon a SCSI interface.

17. The computer system recited in claim 1 wherein one of said TeamProcessors designated TeamManager, monitors the status of each of the remaining TeamProcessors.

18. The computer system recited in claim 1 wherein each said workgroup server is directly accessible to at least one of said TeamProcessors.

19. A workgroup server array system comprising:

a plurality of groups of TeamProcessors, each TeamProcessor having a multiple CPU computing platform, each group comprising a plurality of TeamProcessors and being connected to a TeamPanel for interface with VGA monitors, keyboards, audio speakers and serial buses;

each said group being connected to a workgroup server link;

a plurality of direct access workgroup servers connected to said groups of TeamProcessors by said workgroup server link;

said groups being interconnected to a workgroup Ethernet hub through a workgroup peer-to-peer link;

said groups also being connected to a local area network through a workgroup Ethernet switch.

20. The workgroup server array system recited in claim 19 wherein each said workgroup server is a fault tolerant disk array.

21. The workgroup server array system recited in claim 19 further comprising at least one chassis housing at least four of said TeamProcessors and at least two of said workgroup servers.

22. The workgroup server array system recited in claim 19 comprising at least eight of said TeamProcessors and at least four of said workgroup servers;

each of said TeamProcessors being in communication with each of said workgroup servers.

23. The workgroup server array system recited in claim 19 further comprising at least one TeamPanel having a plurality of control CPUs, each CPU interfacing with a corresponding TeamProcessor, each CPU controlling a plurality of switches for selectively connecting the corresponding TeamProcessor to USB devices, a monitor, audio speakers, a keyboard, a mouse, a modem, a printer and serial devices.

24. The workgroup server array system recited in claim 23 further comprising a plurality of said TeamPanels cascaded together for interfacing an increased number of said TeamProcessors.

25. The workgroup server array system recited in claim 23 further comprising at least one additional one of said control CPUs designated as a first main control unit and providing supervision for access to shared buses and devices for said TeamProcessors and for load balancing among said TeamProcessors.

26. The workgroup server array system recited in claim 25 further comprising a second main control unit for failure mode backup of said first main control unit.

27. The workgroup server array system recited in claim 25 wherein one of said TeamProcessors, designated the TeamManager, controls said TeamPanel.

28. The workgroup server array system recited in claim 19 wherein at least one of said workgroup servers is devoted primarily to application file service and at least one other of said workgroup servers is devoted primarily to database file service.

29. The workgroup server array system recited in claim 28 wherein said application file service-devoted workgroup server provides a capability for servicing application-oriented requests.

30. The workgroup server array system recited in claim 28 wherein said database file service-devoted workgroup server provides a capability for servicing database-oriented requests.

31. The workgroup server array system recited in claim 28 wherein each of said workgroup servers provides for generating batch files written into a peripheral drive for fail-safe operation.

32. The workgroup server array system recited in claim 28 comprising at least another workgroup server providing both application file service and database file service for fail-safe operation.

33. The workgroup server array system recited in claim 19 wherein each TeamProcessor recognizes one workgroup server as primary and all remaining workgroup servers as secondary.

34. The workgroup server array system recited in claim 19 wherein said workgroup peer-to-peer link is based upon Ethernet or SCSI interfaces and wherein said workgroup server link is based upon a SCSI interface.

35. The workgroup server array system recited in claim 19 wherein one of said TeamProcessors designated TeamManager, monitors the status of each of the remaining TeamProcessors.

36. The workgroup computer array system recited in claim 19 wherein each said workgroup server is directly accessible to at least one of said TeamProcessors.

42. The computer system recited in claim 19 wherein each TeamProcessor is associated with one of said servers as a primary server and is associated with the remaining servers as secondary servers.

43. The computer system recited in claim 42 wherein each primary server for a selected TeamProcessor provides full function database accessibility to its selected TeamProcessor and provides read-only database accessibility to all other said TeamProcessors.

44. The computer system recited in claim 19 wherein some of said TeamProcessors are application-based and some of said TeamProcessors are database-based, and wherein some of said servers are application-based servers and some are database servers;

the system further comprising;

means for adjusting the number of application-based TeamProcessors and servers to optimize the quality of performance for incoming traffic.

37. In a multiple processor computer system having a plurality of TeamProcessors each having a multiple CPU computing platform and a workgroup server link connecting the TeamProcessor to a shared plurality of direct access team servers, a method of team server coordination and supervision, the method comprising the steps of:

selecting a first one of said TeamProcessors as TeamManager;

employing said selected TeamManager to monitor the status of all of the remaining TeamProcessors;

each TeamProcessor sending its status information to said TeamManager;

said TeamManager compiling a management-based status table corresponding to status information received from said TeamProcessors.

38. The method recited in claim 37 wherein each of said TeamProcessors is connected through a VGA link to a common monitor and further comprising the steps of:

using said TeamManager to monitor diagnostics of each of said Team Processors;

capturing the VGA link of any failed TeamProcessor by the TeamManager; and

having said TeamManager reset a failed TeamProcessor.

39. The method recited in claim 37 further comprising the steps of allocating at least one TeamProcessor for load balancing;

allocating at least one TeamProcessor for database service;

allocating at least one other TeamProcessor for application-specific services.

40. The method recited in claim 37 further comprising the step of pairing the TeamProcessors to provide fault tolerant takeover by one TeamProcessor for another of a pair.

41. The method recited in claim 37 wherein said computer system has an additional apparatus for monitoring TeamProcessor status;

the method further comprising the steps of;

employing said additional apparatus for monitoring status of said TeamProcessors;

said additional apparatus being the final arbitrator of load balancing among said TeamProcessors;

said additional apparatus instructing said TeamManager to alter load distribution among said TeamProcessors to achieve said load balancing.

45. A workgroup server duster having a plurality of interconnected workgroup server arrays, each such server array comprising:

a plurality of groups of TeamProcessors, each TeamProcessor having a multiple CPU computing platform, each group comprising a plurality of TeamProcessors and being connected to a TeamPanel for interface with VGA monitors, keyboards, audio speakers and serial buses;

each said group being connected to a workgroup server link;

a plurality of direct access workgroup servers connected to said groups of TeamProcessors by said workgroup server link;

said groups being interconnected to a workgroup Ethernet hub through a workgroup peer-to-peer link;

said groups also being connected to a local area network through a workgroup Ethernet switch.

46. The workgroup server cluster recited in claim 45 further comprising a round robin server for balancing the load among said plurality of workgroup server arrays.

47. The workgroup server duster recited in claim 46 further comprising a Domain Name Server for distributing incoming traffic.

48. The workgroup server cluster recited in claim 45 wherein each said workgroup server array provides a workgroup database which is duplicative of every other workgroup server array workgroup database in said workgroup server cluster.

49. The workgroup server duster recited in claim 45 wherein each said workgroup server array provides a unique workgroup database.

50. The workgroup server cluster recited in claim 45, said cluster being upwardly scaleable by serial and parallel connection to a plurality of additional workgroup server clusters for high availability mission critical applications.