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

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

CLC Number: 

• TP302