Журнална файлова система

Журналната файлова система е файлова система, която проследява незаписаните промени като поддържа промените в структурата на данни, известна като журнал, който обикновено е цикличен буфер. В случай на системен срив или спиране на тока, тези файлови системи могат да бъдат върнати онлайн по-бързо и с по-малка вероятност за повреда.[1][2]

В зависимост от имплементацията, журналната файлова система може да следите само за промени на метаданните, което позволява повишаване на производителността за сметка на увеличаване на възможността за загуба на данни. Възможно е файловата система да следи как се съхраняват данните и съответните им метаданни. Някои имплементации позволяват избор между двата варианта.[3]

Бележки

  1. ↑ Anatomy of Linux journaling file systems
  2. ↑ file-journaling.pdf
  3. ↑ tune2fs(8) – Linux man page // Посетен на 2 юли 2018 г.
Тази статия, свързана със софтуер, все още е мъниче. Помогнете на Уикипедия, като я редактирате и разширите.

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