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Modeling method for service reliability of IT (Information Technology) architecture based on colored generalized stochastic Petri net

A modeling method and reliability technology, applied in special data processing applications, instruments, electrical digital data processing, etc.

Active Publication Date: 2018-11-16
BEIHANG UNIV
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Problems solved by technology

And some advanced Petri nets and corresponding methods have been applied in some other systems to solve similar problems

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  • Modeling method for service reliability of IT (Information Technology) architecture based on colored generalized stochastic Petri net
  • Modeling method for service reliability of IT (Information Technology) architecture based on colored generalized stochastic Petri net
  • Modeling method for service reliability of IT (Information Technology) architecture based on colored generalized stochastic Petri net

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[0071] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0072] Such as figure 1 As shown, in order to achieve the service goal, the cloud data center includes two centers that are layered according to the three-tier architecture-on-demand access layer, service layer and storage layer, that is, the active-active data center.

[0073] The IT architecture of the cloud data center consists of a large number of nodes that process information, as well as related processing rules and information resources. The nodes are distributed in the above-mentioned three-layer architecture, and are interconnected by two types of networks: the connection between centers is realized by Overlay Transport Virtualization (OTV), and the connection in the center is realized by optical fiber network. These nodes are divided into five types of nodes according to their functions: switch type; security type; server type; stora...

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Abstract

The invention discloses a modeling method for a service reliability of an IT (Information Technology) architecture of a cloud data center based on a hierarchical colored generalized stochastic Petri net. For limitations present in research of the service reliability of the corresponding IT architecture, a system model of the hierarchical colored generalized stochastic Petri net (HCGSPN) is established by fusing a colored Petri net and a generalized stochastic Petri net by use of a hierarchical modeling method, not only is a processing course of the IT architecture for a service request depicted, but also a time variation characteristic of the external service request and a real-time resource usage condition and a node working state of the IT architecture are embodied. Therefore, the evaluation for the service reliability can be implemented and the resource configuration strategy for the service reliability can be further improved, and a reference is provided for designing and operationand maintenance of the IT architecture of the cloud data center.

Description

technical field [0001] The invention belongs to the technical field of reliability, and in particular relates to a cloud data center IT architecture service reliability modeling method based on hierarchical colored generalized random Petri nets. Background technique [0002] In recent years, with the advancement of cloud computing technology, cloud data centers have emerged and flourished because of their high availability and resource utilization, fast elasticity and recovery. As a carrier for cloud computing to provide services, the service reliability of cloud data centers is the key to ensuring the quality of service (Quality of Service, QoS), and relevant provisions are usually made when signing service-level agreements (Service-Level Agreement, SLA) . [0003] A cloud data center generally consists of three parts of infrastructure: power architecture, cooling architecture and information technology (Information Technology, IT) architecture. Under the continuous power...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/18G06F30/22
Inventor 李晓阳刘岳林焱辉
Owner BEIHANG UNIV
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