Service Level Agreement (Sla) In Utility Computing Systems

A clearly defined life cycle is essential to the effective realization of ALS. Ron, S. and. Al. (2001) defines the life cycle of the ALA in three advanced phases, which are the production phase, the operational phase and the distance phase. The Sun Microsystems Internet Data Center Group (2002) defines a six-step practical lifecycle of ALS: “provider detection,” “definition of ALS,” “agreement,” “monitor ALS violation,” “end ALS” and “impose penalties for violations.” Increased customer satisfaction: A clearly defined and concise ALS increases customer satisfaction by helping suppliers focus on customer requirements and ensure that efforts are directed in the right direction. In the architecture above, SLAs are used to identify the parties involved in electronic business, computing and outsourcing processes and to specify minimum expectations and obligations between the parties (Buco et al. 2004). The most concise ALS contains both general and technical specifications, including commercial parts, pricing policy and resource characteristics needed to process the service (Yeo et al.

2006). According to the Sun Microsystems Internet Data Center Group (2002) report, a good ALS imposes limits and expectations on service delivery and offers the following benefits: A typical architectural view of the utility computer system Improving the quality of services: each item in an ALS corresponds to a key performance indicator (KPI) that indicates customer service within an internal organization. Figure 1 shows the typical system architecture for utility data: user/broker, SLA management, service controllers and resource/service providers. The user or broker sends their requests via applications to the utility computing system, which includes the lower three levels. Service Request Examiner is responsible for probate control. The administrative level of the AES manages the allocation of resources. Improved relationship between two parties: a clear ALS indicates the reward and sanction policies of a service. Consumers can monitor services based on the Target Level (SLO) services defined in the ALS. In addition, the specific treaty helps the parties resolve conflicts more easily. Utility computing (Yeo and Buyya 2006) offers subscription-based computing services if necessary, as do other distribution services such as water, electricity, gas and telephony.

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