Jack Greenfield's Blog

Mostly Cloudy With A Chance Of Services

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  • Blog Post: 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...
  • Blog Post: 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...
  • Blog Post: 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...
  • Blog Post: 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...
  • Blog Post: 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...
  • Blog Post: FabrikamJets Example Updated (Really)

    I just discovered that the 2.0 release of the Fabrikam Jets example on code gallery (described in this blog post ) contained the original version 1.0 code that worked with OAuth WRAP v0.8, instead of the new version 2.0 code that works with OAuth WRAP v0.9. Apparently, I uploaded the wrong file back...
  • Blog Post: Silverlight Samples for OData Over SQL Azure

    I've just published a some code samples that show how to build a Silverlight client for the OData Service for SQL Azure , and how to build a service that validates Secure Web Tokens (SWTs) issued by AppFabric Access Control. For more information about the client, see my earlier post about Silverlight...
  • Blog Post: Silverlight Clients and AppFabric Access Control

    As described in my previous post , I've just finished building some Silverlight clients and a portal for the new OData service for SQL Azure using AppFabric Access Control (ACS) . In the process, I ran into a few issues worth documenting. Hello, World! Before we get to harder problems, let’s make...
  • Blog Post: How to Use OData for SQL Azure with AppFabric Access Control

    [Created - April 16, 2010] [Updated - October 5, 2010 - Revised text and URIs to refer to ACS production, since ACS Labs is now running ACS v2.] Looking for a way to expose data in SQL Azure to web clients using simple REST based APIs? If so, life just got easier. Over the last few weeks, I...
  • Blog Post: FabrikamJets Example Updated to AppFabric Access Control V1

    I just finished migrating the FabrikamJets example from the CTP to V1 of AppFabric Access Control. There were two changes that made an update necessary: 1) V1 uses version 0.9 of the WRAP protocol, instead of version 0.8, and 2) the issuer name generated by V1 is the base URI of the STS endpoint for...
  • Blog Post: Fabrikam Jets - Integrating Codename "Dallas" with AppFabric Access Control

    I recently posted a screencast of an integration between Microsoft AppFabric Access Control and Microsoft Codename "Dallas" here on Channel 9. This was my first project in CST, and took about three weeks to implement. Producing the screencast and packaging the code as an example, soon to be posted on...
  • Blog Post: A New Team, A New Mission

    Just over a month ago, I moved from p&p to the Cloud Services Team (CST), which is part of the Business Platform Division (BPD) of the Server and Tools Business (STB), reporting to John Shewchuk . CST is responsible for SQL Azure , Windows Azure platform AppFabric , Microsoft Codename "Dallas" ,...
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