3 ms·
Yes, but the system is writing roughly half the time, and defragging was mostly a thing before the advent of journalling file systems.
by gpvos 5y ago
Yes, but the system is writing roughly half the time, and defragging was mostly a thing before the advent of journalling file systems.
- usefulcat 5y agoIt think most versions of windows that included a defragmenter as part of the OS were XP and later, all of which would have used NTFS, which is a journaling filesystem.
- beervirus 5y agoDOS defrag goes back a lot farther than that. It even predates FAT32, let alone NTFS.
- simondotau 5y agoPower loss while a defragmenter is writing file data will not cause data loss, even on the most basic of file systems like FAT or HFS. Duplicating data into free space is effectively a no-op until the file system is updated to point from the old location to the new location.