CSR---VCM: Autonomic Mechanisms for Reducing System Downtime due to Maintenance and Upgrades

该项目研究和开发自主机制，以减少由于软件维护和升级而导致的系统停机时间。该项目致力于操作系统升级和应用程序升级，重点是独立的二进制可执行应用程序。 其主要目标是减少补丁和更新“破坏”与旧版本配合良好的环境的预期功能的可能性--在维护期间和维护之后最大限度地提高可用性和可靠性，同时减少管理开销。 这些贡献主要来自于一个虚拟化架构，它将应用程序实例与操作系统实例相结合，使两者都能够独立更新。 通过网络下载传播的结果将提高遗留应用程序的可用性，无需访问源代码、修改、重新编译、重新链接或应用程序特定的语义知识，并在商品操作系统和硬件上高效安全地运行。

The project investigates and develops autonomic mechanisms forreducing system downtime due to software maintenance and upgrades.The project addresses operating system upgrades and also applicationupgrades, focusing on standalone binary-executable applications. Themain goal is to lessen the possibility that patches and updates will``break'' expected functionality of the environment that worked finetogether with the old version -- overall maximizing availability andreliability both during and after maintenance while imposing littlemanagement overhead. The contributions stem primarily from avirtualization architecture that decouples application instances fromoperating system instances, enabling either to be independentlyupdated. The results, disseminated via web download, will improveavailability of legacy applications, with no source code access,modification, recompilation, relinking or application-specificsemantic knowledge, and perform efficiently and securely on commodityoperating systems and hardware.