journaling file system

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journaling file system

A file system that contains its own recovery capability in the event of a failure. Before the disk indexes are updated, the information about the changes is recorded in a separate log (the journal). If a power or other system failure corrupts the indexes as they are being rewritten, the operating system can use the log to repair them when the computer is restarted.
References in periodicals archive ?
Veritas File System is a data-center class file system including an extent-based, logging file system, on-line snapshot for data protection, and scalable, tunable performance.