基于RAID5的磁盘阵列Cache的研究与实现

Study and Implementation of the RAID5-based Disk Cache

通过对RAID5结构的研究，发现磁盘阵列Cache能减少I/O子系统的写响应时间， 可将多个小的写转换为大的写，从而减少冗余写的次数。最后给出作者在参与RAID5控制器 的研制工作中对磁盘阵列Cache的实现方法。

This paper studies the structure of RAID5 and shows that cache can reduce the write response time，accumulate many small writes to make a full-st r ipe write and thus reduce the redundant write times. Finally，the paper presen ts the implementation of a RAID5-based disk cache.