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公开(公告)号:US08909868B2
公开(公告)日:2014-12-09
申请号:US14283783
申请日:2014-05-21
Applicant: Huawei Technologies Co., Ltd.
Inventor: Wenlin Cui , Qiyao Wang , Mingquan Zhou , Tan Shu , Honglei Wang
CPC classification number: G06F3/061 , G06F3/0655 , G06F3/0689 , G06F9/5016 , G06F11/3409 , G06F11/3442 , G06F12/084 , G06F12/0871 , G06F12/0873 , G06F12/0897 , G06F2201/885 , G06F2212/282
Abstract: A method and a system for controlling quality of service of a storage system, and a storage system. The method includes: collecting information about processing capabilities of the hard disks in the storage system and obtaining processing capabilities of the hard disks according to the information about processing capabilities; dividing a cache into multiple cache tiers according to the processing capabilities of the hard disks; and writing, for a cache tier in which dirty data reaches a preset threshold, data in the cache tier into at least one hard disk corresponding to the cache tier. The method avoids a phenomenon of preempting page resources in the cache.
Abstract translation: 一种用于控制存储系统的服务质量的方法和系统以及存储系统。 该方法包括:收集关于存储系统中的硬盘的处理能力的信息,并根据关于处理能力的信息获得硬盘的处理能力; 根据硬盘的处理能力将缓存分为多个缓存层; 并且对于其中脏数据达到预设阈值的高速缓存层,将高速缓存层中的数据写入到与缓存层对应的至少一个硬盘中。 该方法避免了在缓存中抢占页面资源的现象。