Abstract: Storage optimizations by directory compaction in a file allocation table (FAT) file system. The method comprises determining if a cluster comprises a deleted content, indicating that the deleted content is deleted, and updating an entry of a FAT associated with the cluster to indicate that the cluster is free. The method may also comprise indicating that the deleted content is deleted and modifying a metadata of at least one of a file of the cluster and a directory of the cluster according to a specified protocol.

Abstract: Systems and methods for on the fly compression and storage device for compressing/decompressing data are disclosed. In one embodiment, an on the fly compression and storage system includes a file system for forwarding data for storing, one or more compression drivers, with one of the compression drivers invoked for compressing the data forwarded by the file system into compressed data, and a storage device for storing the compressed data. The compressing of the data and the storing of the compressed data are seamlessly performed. A status of the storage device is dynamically updated to the file system based on the compressing of the data.