数据网格的存储资源预留方法

为了解决将二元法资源能力预留策略直接应用到数据网格的存储资源能力上所引起的接纳率较低、资源能力碎片过多、存储空间浪费严重等问题,通过分析数据网格应用中存储空间预留的特点,提出了四元法资源能力预留策略.传统的时间槽算法无法适用于四元法资源能力预留,进而提出了使用基本阶梯法和阈值阶梯法能很好的解决此问题.实验表明本文的资源能力预留方法具有更高的资源使用率和接纳率,而阈值阶梯法能够适应传输速度动态变化的网络特性.

Storage resource reservation method for data grid

To solve the problems of low acceptance rate,too much resource capacity debris,serious waste of storage space caused by directly applying binary resource capacity reservation strategy to storage resource capacity reservation(SRCR) in data grid,by analyzing the characteristics of SRCR for data grid application,a four-tuple reservation strategy(FTRS) is proposed.The traditional time slot algorithm for binary strategy can not be applied to FTRS,so the basic trapezoidal algorithm and threshold trapezoidal algorithm(TTA) are put forward.The experimental results show that,compared with binary strategy,FTRS achieves higher resource utilization and acceptance rate,meanwhile,TTA can adapt to network speed jitter.