云计算中的SLA管理技术研究

doi:10.3969／j.issn.1000-0801.2012.10.007

Abstract

Abstract:

In cloud environment, customers' demands are changed and occurred autonomously and unpredictably, and they are out of control of the providers. Cloud providers have to meet the requirements. So, it is the key to enforce QoS guarantee for the future sustainable development of cloud computing technology, QoS guarantee is implemented by service level agreement enforcement. The SLA metrics classification in SLA management, resource metrics monitoring, and the SLA violation detection and avoidance management, SLA parameter mapping technologies are reviewed. Finally, the conclusion gives that the SLA-based resource management in cloud computing is the future direction of research.

Key words: service level agreement, resource monitoring, SLA violation detection, SLA violation avoidance, SLA mapping, SLA management

Qiongfen Qian,Chunlin Li,Jiajun Xiong,Qiang Li. Towards SLA Management in Cloud Computing[J]. Telecommunications Science, 2012, 28(10): 38-45.

Figures/Tables 4

资源指标	SLA参数	映射规则
正常运行时间（uptime）停机时间（downtime）	可用性（A）	$A = 1 - \frac{d o w n t i m e}{u p t i m e}$
入比特（inbytes）出比特（outbytes）	响应时间（R_total）	R_total=R_in+R_out，其中， $R_{i n} = \frac{packetsize}{bandwidthin-inbytes} ，$
报文大小（packetsize）平均输入带宽（bandwithin）		$R_{o u t} = \frac{packetsize}{bandwidthin-outbytes}$
平均输出带宽（bandwithout）

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SLA参数	SLA目标	SLA威胁阈值
可用性	98%	98.9%
响应时间	500ms	498.9ms
存储	100GB	102GB
输入带宽	50Mbit/s	52Mbit/s
输出带宽	100Mbit/s	102Mbit/s

[1]	UXiaofeng XU,Jinsong XU. An SLA-based resource scheduling method in hybrid cloud environment [J]. Telecommunications Science, 2016, 32(2): 126-133.
[2]	Ping Guo,Tingying Feng. Resource Monitoring Model in Cloud Computing Based on Dynamic Period and Event-Driven [J]. Telecommunications Science, 2012, 28(9): 38-42.

Towards SLA Management in Cloud Computing

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