UFS File System Logging
With UFS file system logging, updates to a UFS file system are recorded in a log before they are applied. In the case of system failure, the system can be restarted, and the UFS file system can quickly use the log instead of having to use the fsck command.
The fsck command is a time-consuming and not always 100% accurate method of recovering a file system. It reads and verifies the information that defines the file system. If the system crashed during an update, the update might have been only partially completed. The fsck command must correct the information by removing these partial updates.
With UFS file system logging, only logged updates are actually applied to the file system. If the system crashes, the log has a ...
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