noun
file fragmentation
Computing term for the scattering of file data across non-contiguous disk sectors, leading to slower access times.
ファイルの断片化が進むと、読み込み速度が低下します。
As file fragmentation progresses, read speed decreases.
定期的にデフラグを実行して、ファイルの断片化を解消してください。
Please run defragmentation regularly to resolve file fragmentation.
断片化 is the general term for fragmentation; ファイルの断片化 specifically refers to file fragmentation in computing.
Compound of ファイル (file) + の (possessive particle) + 断片化 (fragmentation). 断片化 is from 断片 (fragment) + 化 (-ization).