提出一种自适应数据布局的混合硬盘结构，其内部包含闪存介质和磁介质，而上层提供统一的逻辑地址空间。在混合硬盘内部，地址转换层统一管理闪存介质和磁介质的物理存储空间，并将逻辑地址转换为物理地址。混合硬盘结构采用自适应的方法．将读次数多和写次数多的数据分别分布在闪存和磁介质上，从而综合利用了闪存和磁介质的不同优点。%We propose a hybrid disk structure, which contains flash medium and magnetic medium, and provides unified logical address space to upper layer such as file system. An address translation layer inner the hybrid disk manages the physical addresses of the flash and magnetic medium, and translates logical address to physical address. This structure can make use of the advantages of flash and magnetic medium, and adaptively distribute the frequently read and written data to flash medium and magnetic medium respectively.
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