Data processing: measuring – calibrating – or testing – Measurement system – Statistical measurement
Reexamination Certificate
2011-04-19
2011-04-19
Nghiem, Michael P (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Statistical measurement
C702S181000, C702S182000
Reexamination Certificate
active
07930137
ABSTRACT:
Provided is an availability prediction method for a high availability. The method includes calculating a basic survival probability that the other node survives until a failure on one node of two nodes constituting a cluster is fixed, and determining an optimal number of nodes meeting a preset reference availability probability by calculating an availability probability for a predetermined range of the number of nodes on the basis of the basic survival probability. The method determines the number of nodes in the high availability cluster so as to match a reference availability probability, and is able to accomplish an optimal configuration of a cluster by calculating the availability probabilities for combinations between active node and passive nodes and between head nodes and switches.
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Jeong Jin-Hwan
Kim Chang-Soo
Kim Hag-Young
Lee Won-jae
Lee Yong-Ju
Desta Elias
Electronics and Telecommunications Research Institute
Nghiem Michael P
Staas & Halsey , LLP
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