基于对象的进化存储系统研究

存储管理的成本目前已经超过了硬件成本。本文给出了一种新的存储结构，其中包含了自动化管理的功能以简化存储管理。进化存储系统的概念是指实现动态平衡和优化的基于磁盘的存储，其失效部件将会被热备份部件立即更换（物理进化），其数据布局和分布会根据新部件的特性进行自动重组（逻辑进化）。同时，我们还描述了称为SMART的实现分散进化存储系统的目标和可行技术方案，包括自安全、自维护、自适应、自恢复和自测试。我们认为进化存储系统应该是基于对象的，通过智能存储设备达到更好的可用性和可维护性。

A Study on the Object-based Evolving Storage Systems

Storage management costs now exceed storage hardware costs, and this paper outlines a storage architecture that integrates automated management functions to simplify them. Evolving Storage System (ESS)is the concept of a dynamically balanced and optimized disk-based storage, in which failure component should be replaced immediately by another hot spare component (physical evolving); and the data layout and distribution should be reorganized automati- cally according to the attributes of new components (logical evolving). We also describe the feasible SMART tech- niques toward ESS, including self-securing, self-maintaining, self-adaptive, self-recovering, and self-testing. We be- lieve that it's reasonable for ESS to be object-based internally, aiming better availability and maintainability by intelli- gent storage devices.