摘要： 业务执行繁忙和资源分配不均可能降低个别磁盘池的I/O响应速度，影响请求的正常响应。该文通过在不同磁盘池之间进行逻辑磁盘(LD)移动处理，利用空闲磁盘池中的容量做成一个预约LD，在空闲时间后台并行进行数据迁移，使存储系统的IOPS提高了8%左右。通过交换LD元数据信息，可以避免外部Mount点的变化。
关键词:
性能瓶颈,
磁盘池,
逻辑磁盘移动
Abstract: Because of the busy ratio of operation and uneven distribution of resources, the individual disk pool may be led to decrease the I/O speed of response and the normal response to the request is affected. By the Logical Disk(LD) migration processing between disk pools, a reserved LD can created by using the spare capacity. By parallel data migration on idle time background, the IOPS of storage system can be around increased by 8%. Through the exchange of LD metadata information, it is possible to avoid an external point of the Mount.
Key words:
performance bottleneck,
Disk Pool(DP),
Logical Disk(LD) move
中图分类号:
曾雷杰;张延园;李战怀;赵晓南. 一种SAN上的数据迁移算法设计与实现[J]. 计算机工程, 2009, 35(4): 53-55.
ZENG Lei-jie; ZHANG Yan-yuan; LI Zhan-huai; ZHAO Xiao-nan. Design and Implementation of Data Migration Algorithm on SAN[J]. Computer Engineering, 2009, 35(4): 53-55.