[Next] [Previous] [Up] [Top] [Contents]
5.1 File System Management
5.1.2 File system updates
The operating system doesn't write immediately to disk when a file is modified. To save time it writes to a buffer cache which is much faster than writing to disk. When the buffer cache fills up the information, along with the appropriate inode numbers to identify the files, is written to disk. If the system is somehow interrupted before the buffer is written to disk, the file system on the disk can become corrupted.
Unix System Administration - 8 AUG 1996
[Next] [Previous] [Up] [Top] [Contents]