关键词: 自适应 服务质量 分布式存储系统 基于对象

Abstract:

Ensuring performance is a long-term goal in storage systems. The existing management tools rely on resource provisioning to meet the performance goals  ,and they need a detailed knowledge of the system characteristics and the access patterns. This paper brings out an Adaptive Controlled Object-based Sto  rage System（ACOSS） prototype, which can allot disk I/Os according to the priorities of workloads. When the storage system is overloaded,ACOSS can chan nge the encoding scheme of hot spot objects on line. The next work is to implement the system to testify its stability and robustness.

Key words: （adaptive, QoS, distributed storage system, object-based）