How Reliable Are Certified Cloud Hosts? April 2016 Availability Insights
The April 2016 Trusted Cloud report shows overall host availability at 99.83%, an improvement over March, with 60 compliant hosts (71% compliance) across 84 IDC data centers, and outlines the monitoring methodology and provider performance.
Note: The Trusted Cloud host availability monitoring simulates user monitoring behavior; results reflect the availability of the monitored cloud service provider’s data centers and are for reference only.
In April, overall availability reached 99.83%, an improvement over March, with the number of compliant cloud hosts rising to 60 and a compliance rate of 71%.
Trusted Cloud continuously monitors certified cloud host services to verify whether providers meet their SLA availability commitments.
Monthly reports are published on www.kexinyun.org, where detailed availability information can be viewed. The monitoring method is as follows:
The method simulates real users by randomly creating a cloud host in each IDC data center of every provider as a monitored node. Domestic monitoring nodes are located in Beijing Unicom, Shanghai Telecom, and Guangdong Telecom; overseas nodes are in the United States, Singapore, and the United Kingdom. If a request from a monitoring node takes longer than 1000 ms and at least two monitoring points are abnormal, the service is considered unavailable. For unified measurement, any outage lasting more than three minutes is recorded as service downtime. Exact definitions may vary per provider’s SLA.
Monitoring Results
As of April 2016, Trusted Cloud’s monitoring covered five batches of certified cloud host services, encompassing 84 IDC data centers from 35 providers, including 78 domestic nodes and 6 overseas nodes.
Geographically, domestic IDC data centers are concentrated in Beijing, Shanghai, Guangzhou, Shenzhen, and Hong Kong, while overseas nodes are primarily in North America.
Distribution of monitoring nodes:
The overall availability trend shows April’s 99.83% availability, up from March’s 99.63%, with stability since February.
In April, 30 cloud service providers met SLA requirements for the monitored nodes, including:
Tencent, UCloud, China Telecom, China Mobile, China Unicom, Alibaba, Kingsoft, Baidu, CenturyLink, Huawei, Wangsu, 360, JD, Xunda Cloud, Shanghai Feixun, Hainan Yijian, Linyi Tuopu, Meituan Cloud, Zhongqi Telecom, ZTE, Haiyun Jiexun, Blue Cloud, Beijing Yuelian, Cloud End Network, Huayun Data, Baoxin Software, Senhua Yiteng, Shanghai Technology Network, Shanghai Kuahui, Xisi Cloud.
April’s compliant IDC data centers totaled 60, yielding a compliance rate of 71%.
Details of compliant IDC data centers and their SLA commitments are shown below:
If you have questions or suggestions about the results, please contact the author.
Email: chen [email protected] Phone: 010-62300559 Website: www.kexinyun.org
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