file control blocks 文件控制块
The block storage layout maps the file blocks to physical storage blocks.
块存储布局将文件块映射到物理存储块。
When a write or delete occurs in the original file system, the affected blocks are copied into the snapshot.
当原始文件系统中发生写入或删除事件时,受影响的块将复制到快照中。
With block storage, a file is divided into blocks, and the blocks are dispersed among the drives.
有了块存储之后,文件可以被划分为块并分布到不同的驱动器中。
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