Enhancing reliability and robustness of a cluster

Details Enhancing reliability and robustness of a cluster Enhancing reliability and robustness of a cluster

2000-03-29

2004-07-20

Beausoliel, Robert (Department: 2184)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110, C714S013000, C714S041000, C714S043000, C714S056000, C719S324000

Reexamination Certificate

active

06766470

ABSTRACT:

FIELD
The present invention relates to a technique for enhancing the reliability and robustness of a cluster.
BACKGROUND
A cluster consists of one or more hosts and one or more I/O (input/output) units containing I/O controllers, the hosts and I/O controllers being connected together by a common interconnection fabric. One common problem in a cluster arrangement is that there often are single points of failure in the cluster. While adding redundant elements to the cluster may eliminate some single points of failure, unfortunately, some present operating systems do not give a cluster an opportunity to recover from an element failure by substituting a redundant element. Furthermore, a failure in the cluster may be either transient or permanent. Unfortunately, present-day arrangements do not enable a cluster to automatically recover from a transient failure.


REFERENCES:
patent: 5787019 (1998-07-01), Knight et al.
patent: 6085265 (2000-07-01), Kou
patent: 6108699 (2000-08-01), Moiin
patent: 6151688 (2000-11-01), Wipfel et al.
patent: 6334155 (2001-12-01), Long et al.
patent: 6493715 (2002-12-01), Funk et al.

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