Method of improving the availability of a computer...

Details Method of improving the availability of a computer... Method of improving the availability of a computer...

2004-08-18

2008-08-05

Lu, Kuen S. (Department: 2167)

Data processing: database and file management or data structures

Database design

Data structure types

C709S223000

Reexamination Certificate

active

07409395

ABSTRACT:
A method for improving the availability and reliability of a computer clustering system having first and second servers that are connected to each other by a communication link and that each have an associated mass storage device. In one implementation, the method begins when the first server detects a loss of communication over the communication link from the second server to the first server that prevents the servers from communicating with each other. The first server then analyzes the communication link to determine if the communication link is functioning properly. If the communication link is functioning properly, then the first server continues operation, assuming a right to survive without communicating with the second server or with the mass storage device of the first server or with the mass storage device of the second server, and the first server services network requests that would otherwise be serviced by the second server.

REFERENCES:
patent: 5434994 (1995-07-01), Shaheen et al.
patent: 5812748 (1998-09-01), Ohran et al.
patent: 5828889 (1998-10-01), Moiin et al.
patent: 5884018 (1999-03-01), Jardine et al.
patent: 5892895 (1999-04-01), Basavaiah et al.
patent: 5948109 (1999-09-01), Moiin et al.
patent: 5978565 (1999-11-01), Ohran et al.
patent: 5991518 (1999-11-01), Jardine et al.
patent: 5999712 (1999-12-01), Moiin et al.
patent: 6002851 (1999-12-01), Basavaiah et al.
patent: 6108699 (2000-08-01), Moiin
patent: 6134673 (2000-10-01), Chrabaszcz
patent: 6145089 (2000-11-01), Le et al.
patent: 6151688 (2000-11-01), Wipfel et al.
patent: 6192483 (2001-02-01), Moiin et al.
patent: 6279032 (2001-08-01), Short et al.
patent: 6311217 (2001-10-01), Ehlinger
patent: 6338112 (2002-01-01), Wipfel et al.
patent: 6353898 (2002-03-01), Wipfel et al.
patent: 6385625 (2002-05-01), Slaughter
patent: 6393485 (2002-05-01), Chao et al.
patent: 6421787 (2002-07-01), Slaughter et al.
patent: 6438705 (2002-08-01), Chao et al.
patent: 6598167 (2003-07-01), Devine et al.
patent: 6606708 (2003-08-01), Devine et al.
patent: 6609213 (2003-08-01), Nguyen et al.
patent: 6785678 (2004-08-01), Price
patent: 6983317 (2006-01-01), Bishop et al.
patent: 2002/0038301 (2002-03-01), Aridor et al.
patent: 2002/0049845 (2002-04-01), Sreenivasan et al.
patent: 0760503 (1997-05-01), None
patent: 0 810 526 (1997-12-01), None
patent: 11-175488 (1999-07-01), None
patent: 2000-040986 (2000-02-01), None
patent: WO 98/33121 (1998-07-01), None
Sun Cluster 2.2 Software Installation Guide, Sun Microsystems, Inc., Apr. 1, 199.
Sun Cluster 2.2 System Administration Guide, Sun Microsystems, Inc., Mar. 22, 1999.
Sun Cluster 2.2 Software Installation Guide, Sun Microsystems, Inc., Apr. 1, 1999.
Sun Cluster 2.2 Software Administration Guide, Sun Microsystems, Inc., Mar. 22, 1999.
Microsoft Corporation, Windows NT® Server, Server Operating System, “Cluster Stategy: High Availability and Scalability with Industrial-Standard Hardware,” 1998.
Murray, P.T., et al, Somersault: Enabling Fault-Tolerant Distributed Software Systems, HP Laboratories Publication HPL-98-81, Apr. 1998.
Yang, C-L, et al., Hybrid Fault Diagnosability with Unreliable Communications Links, IEEE Transaction on Computers, vol. 37, No. 2, Feb. 1998.
Mori et al., PC Server Cluster—Focusing on Availability Cluster, IPSJ (Information Processing Society of Japan) Magazine, vol. 39, No. 1, Jan. 15, 1998, pp. 49-54.
Teshima, High Availability Tool for PC Server, Reducing Downtime to a Minimum by Using a Tool for Supporting a Recovery Operation, Nikkei Open Systems, Sep. 1995, No. 30, pp. 302-310.
DNCWARE ClusterPerfect (Solaris Version) Manual, Remote Disc Mirroring Edition, Dec. 15, 2000, pp. 1-239.

Affiliated with

Also associated with

Rating

Method of improving the availability of a computer... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of improving the availability of a computer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of improving the availability of a computer... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4006079