首页>
外国专利>
TECHNIQUES FOR DYNAMICALLY RELOCATING VIRTUAL DISK FILE BLOCKS BETWEEN FLASH STORAGE AND HDD-BASED STORAGE
TECHNIQUES FOR DYNAMICALLY RELOCATING VIRTUAL DISK FILE BLOCKS BETWEEN FLASH STORAGE AND HDD-BASED STORAGE
展开▼
机译：动态存储闪存和基于HDD的存储之间的虚拟磁盘文件块的技术
展开▼
页面导航
摘要
著录项
相似文献
摘要
Techniques for dynamically managing the placement of blocks of a logical file between a flash storage tier and an HDD storage tier are provided. In one embodiment, a computer system can collect I/O statistics pertaining to the logical file, where a first subset of blocks of the logical file are stored on the flash storage tier and where a second subset of blocks of the logical file are stored on the HDD storage tier. The computer system can further generate a heat map for the logical file based on the I/O statistics, where the heat map indicates, for each block of the logical file, the number of times the block has been accessed. The computer system can then identify, using the heat map, one or more blocks of the logical file as being performance-critical blocks, and can move data between the flash and HDD storage tiers such that the performance-critical blocks are placed on the flash storage tier.
展开▼
