Geographically Distributed High Availability

This is the last post in the series on business continuity. It briefly describes how the service developer can provide geographically distributed high availability on the Azure platform. The Azure platform currently does not directly support highly available, geographically distributed services. Customers can deploy services to multiple data centers, but the platform does nothing to…

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Disaster Recovery

While the Azure platform provides high availability within a single data center, as discussed in the previous post, it currently does not explicitly support or enable disaster recovery or geographically distributed high availability. This post and the next one will discuss how the service developer can provide these two capabilities, respectively. Disaster Recovery Disaster recovery typically…

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High Availability On The Azure Platform

Currently, both Windows Azure and SQL Azure offer high availability within a single data center. As long as a data center remains operational and accessible from the Internet, services hosted there can achieve high availability. Windows Azure Windows Azure uses a combination of resource management, elasticity, load balancing, and partitioning to enable high availability within…

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Business Continuity Basics

This post describes the basics of business continuity. Business continuity poses both business and technical challenges. In this series, we focus on the technical challenges, which include failure detection, response, diagnosis, and defect correction. Since failure diagnosis and defect correction are difficult to automate effectively in the platform, however, we narrow the focus even further…

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Business Continuity On Azure

Azure customers want their services to be continuously available to their users, despite component failures, platform degradations and data center outages. In other words, they want business continuity. To achieve it, the services must be highly available, and must recover from outages quickly and with minimal data loss, while complying with policies and regulations, and…

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