It`s simple when you know how ! Operating Systems,Windows,Windows server Why is There a Big Difference Between File Size and The Size on Disk its takeing

Why is There a Big Difference Between File Size and The Size on Disk its takeing

 

The difference usually happens because you have a lot of small files, Consider this:

  • 50,000 files
  • 32 KB cluster size (allocation units), which is the max for FAT32
for each file averaged 2 KB, you’d get about 100 MB total – but you’re also wasting 15x that (30 KB per file) on average due to the allocation unit size.

Real file size will be 100mb

Actual size on disk will be 50000*32000 wasting 15x that (30 KB per file) on average due to the allocation unit size

 

 

 

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