[Cloud Computing]Mechanisms: SLA Management System_a cloud service consumer interacts with a cloud se-优快云博客

本文介绍了一种用于确保云服务遵循服务质量协议(SLA)的SLA监控与管理系统。该系统通过收集运行时性能数据并将其汇总为报告指标来监控云服务的运行状况。当检测到服务异常时，系统能主动修复或切换服务。

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SLA Management System

The SLA monitor mechanism is used to specifically observe the runtime performance of cloud services to ensure that they are fulfilling the contractual QoS requirements published in SLAs (Figure 1). The data collected by the SLA monitor is processed by an SLA management system to be aggregated into SLA reporting metrics. This system can proactively repair or failover cloud services when exception conditions occur, such as when the SLA monitor reports a cloud service as "down."

Figure 1 - A cloud service consumer interacts with a cloud service (1). An SLA monitor intercepts the exchanged messages, evaluates the interaction, and collects relevant runtime data in relation to quality-of-service guarantees defined in the cloud service's SLA (2A). The data collected is stored in a repository (2B) that is part of the SLA management system (3). Queries can be issued and reports can be generated for an external cloud resource administrator via a usage and administration portal (4) or for an internal cloud resource administrator via the SLA management system's native user-interface (5).