Abstract: Perceived corruptions encountered on file system volumes, and which cannot be initially remedied online, are processed to verify whether they are true, existing volume data structure corruptions or, alternatively, false positives. Upon the verification of one or more of a volume's corruptions, error scanning is performed to check for, and attempt to remedy online, all the existing corruptions on the volume. Subsequent to error scanning processing, if one or more verified corruptions continue to exist on a file system volume, at file system boot up time spot corruption correction is performed to attempt to remedy the existing, verified corruptions on the volume. Spot corruption correction is performed to attempt to correct verified data structure corruptions on a volume of the file system while the volume is maintained offline for the time necessary to attempt to correct its prior identified corruptions.

Abstract: Volumes of a file system environment are taken offline when they require repair for confirmed corruptions. Applications utilize handles, both real and, in environments where proxy file systems are overlaid upon the real file system(s), proxy, to access objects stored on volumes of a file system environment. Real handles are closed when the volume storing the objects for the real handles is taken offline, terminating applications' access to the volume's objects. New real handles are automatically generated for those volume objects that had a real handle prior to the volume going offline for corruption correction processing and which were not altered during the corruption correction processing. Applications accessing these objects can continue to use their original proxy handle, which is subsequently correlated with an automatically established new real handle, to access the objects.

Abstract: Perceived corruptions encountered on file system volumes, and which cannot be initially remedied online, are processed to verify whether they are true, existing volume data structure corruptions or, alternatively, false positives. Upon the verification of one or more of a volume's corruptions, error scanning is performed to check for, and attempt to remedy online, all the existing corruptions on the volume. Subsequent to error scanning processing, if one or more verified corruptions continue to exist on a file system volume, at file system boot up time spot corruption correction is performed to attempt to remedy the existing, verified corruptions on the volume. Spot corruption correction is performed to attempt to correct verified data structure corruptions on a volume of the file system while the volume is maintained offline for the time necessary to attempt to correct its prior identified corruptions.

Abstract: Directory virtualization may be achieved in semiconductor memories, such as flash memories, by providing a system in which files and directories are interchangeable. A directory may be stored at a virtual address which points to various files. From the user perspective, a tree hierarchy may be achieved. From a hardware standpoint, a series of entries in a table may be linked together by various pointers.

Abstract: A method and apparatus to write a file to a nonvolatile memory is provided. The method may include writing a file to a nonvolatile memory using at least two headers and at least two file fragments and using only information stored in one header of the at least two headers to determine if the writing of the file to the nonvolatile memory was interrupted by a loss of power. Other embodiments are described and claimed.