windows - LogicalBytesPerSector 与 PhysicalBytesPerSector

Question

当我执行命令时 fsutil fsinfo sectorInfo c: ，我收到这个输出:

LogicalBytesPerSector :                                 512
PhysicalBytesPerSectorForAtomicity :                    4096
PhysicalBytesPerSectorForPerformance :                  4096
FileSystemEffectivePhysicalBytesPerSectorForAtomicity : 4096 Device
Alignment :                                      Aligned (0x000)
Partition alignment on device :                         Aligned
(0x000) No Seek Penalty Trim Supported Not DAX capable Not
Thinly-Provisioned

我担心 LogicalBytesPerSector 之间的区别和 PhysicalBytesPerSectorForAtomicity .
如 LogicalBytesPerSector小于 PhysicalBytesPerSectorForAtomicity ，我写的每一个 512 字节的块实际上都会被原子写入吗？另一方面，我写的每个 4096 字节块实际上都会被原子写入吗？
另外，512字节的读/写会不会很慢，好像我理解得很好，系统需要读取4096个物理字节才能写入我的512个字节？

Answer 1

does every block of 512 bytes I will wrote will be wrote atomically ? on the other way does every block of 4096 Bytes I will wrote will be wrote atomically?

4096 将自动写入。
512 将自动写入，并可能写入其他数据以完成到 4096。

Also does the read/wrote of 512 bytes will be not too much slow as, if I understand well, the system will need to read 4096 Physical bytes just to wrote my 512 bytes?

是的，至少写 PhysicalBytesPerSectorForPerformance .由于更有效的命令利用，更多可能仍然更快。