International Business Machines Corporation
Online file system check using file system clone

Abstract:

A file system check (fsck) utility configured to create a file system clone of an active file system. Respective user operations associated with the active file system are directed to the file system clone while the active file system undergoes fsck operations. After completing fsck operations and resolving file system corruptions in the active file system, the file system clone and the active file system are merged. After merging the file system clone and the active file system, respective user operations associated with the active file system are directed to the active file system and the file system clone is discarded.