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Nevin Dong's Blog
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December, 2014
TechNet Blogs
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Nevin Dong's Blog
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December, 2014
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从Web Server向Azure WebSites迁移的利器(Migration Assistant)
Posted
5 days ago
by
Nevin (Naiwen) Dong
将Web应用迁移到云端,常见的做法是采用IaaS模式,即创建虚拟机(Virtual Machine,VM)并在上面分别部署Web Server、Database Server、Cache Server、DNS Server等;当访问负荷增大的时候,则增加虚拟机的数量来实现伸缩。 之前曾讨论过,可以将数据库服务器(Database Server)采用Platform as a Server(PaaS)模式来提供,也有相关的 迁移工具来帮助从SQL Server迁移到Azure SQL Database...
SQL Database性能(Performance)的可规划性(Predictability)及度量(Measurement)
Posted
13 days ago
by
Nevin (Naiwen) Dong
性能是一个大家经常关注的问题,直接体验就是系统/应用的运行速度、响应时间、并发用户数等。从个人机(PC)、服务器(Server)、虚拟化(Virtualization)、私有云(Private Cloud)到公有云(Public Cloud),性能一直是开发/IT运营持续改进的领域。 当然,性能也是一个需要深入的专业知识的工作,性能的度量(Measurement)、监控(Monitoring)、基准测试(Benchmarking)、调优(Tuning)/优化(Optimization)等,都需要对技术的深入理解...
云集万物:支持百万级设备实时互连的Azure事件中心 (Event Hubs)
Posted
15 days ago
by
Nevin (Naiwen) Dong
之前曾探讨过一个有趣的话题,即: 支撑超百万级设备互联的Windows Azure 通知中心(Notification Hub) ,可以支持通过Windows 推送提醒服务 (WNS)、Microsoft 推送提醒服务 (MPNS)、Apple 推送提醒服务 (APNS)、Google Cloud Messaging (GCM)、百度通知等提醒服务,向百万级以上的活动的设备(特别是移动的设备)推送通知等消息。 有趣的是,Azure又推出了另一个支持百万级设备实时互连的服务,叫事件中心 (Event...
针对Azure Storage的关键运行指标的度量与分析(Metrics and Analytics)
Posted
18 days ago
by
Nevin (Naiwen) Dong
Azure 存储(Storage)是Microsoft Azure云中非常关键的基础性服务,绝大多数的服务(例如Azure虚拟机VM的VHD文件、大数据HDInsight等),都基于这一关键服务。 对于希望深入管理自己云应用的IT人员或者开发人员,特别是一些基于Azure提供多租户(Multi-tenancy)服务的厂商,希望能够更深入地掌握自己账户的存储的运行情况,以便进行有效控制、成本分摊及异常诊断等。 这里涉及到的一个关键概念就是Azure的存储分析,可以为存储帐户提供指标数据,进行跟踪请求...
从SQL Server到Microsoft Azure SQL Database的技术迁移及利器
Posted
18 days ago
by
Nevin (Naiwen) Dong
2
Comments
数据服务是几乎所有应用都要依靠,或者对外提供的关键性服务;一些关键性应用,例如企业级应用、在线游戏、电商等,对数据服务的可用性、一致性、伸缩性等有更高的服务等级要求。 随着云计算技术的推广,越来越多的IT管理/开发者考虑在Azure云中建立/使用数据库,主要有两种模式可以考虑:IaaS和PaaS。其中,IaaS模式是通过在Azure云创建及部署SQL Server(或其他服务器软件例如MySQL)的虚拟机的方式,提供及使用数据服务,即SQL Server VM in Azure;而PaaS模式则更简单...