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Techniques for Implementing Hybrid Flash/HDD-based Virtual Disk Files
Techniques for Implementing Hybrid Flash/HDD-based Virtual Disk Files
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机译:实现基于混合Flash / HDD的虚拟磁盘文件的技术
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摘要
Techniques for utilizing flash storage as an extension of hard disk (HDD) based storage are provided. In one embodiment, a computer system can store a first subset of blocks of a logical file in a first physical file residing on a flash storage tier, and a second subset of blocks of the logical file in a second physical file residing on an HDD storage tier. The computer system can then receive an I/O request directed to one or more blocks of the logical file and process the I/O request by accessing the flash storage tier or the HDD storage tier, the accessing being based on whether the one or more blocks are part of the first subset of blocks stored in the first physical file.
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