Patent ID: 8417668

Claim:
A device for integrating file systems, the device comprising: a plurality of storage device interfaces operatively coupleable to a plurality of storage devices; a host interface; and a hub configured for operatively connecting between the storage device interfaces and the host interface, wherein the hub is configured to represent to a host a group of files as a virtual file system, via the host interface, wherein data of the group of files is stored in at least two of the storage devices, and wherein each stored file of the group of files satisfies a first condition, the first condition specifying that the stored file is readable by the host, wherein a first file of the group of files resides in a first storage device of the plurality of storage devices, wherein the first storage device has a first storage device file system, wherein a second file of the group of files resides in a second storage device of the plurality of storage devices, wherein the second storage device has a second storage device file system, wherein the first storage device file system is distinct from the second storage device file system, and wherein the group of files is represented to the host as the virtual file system further conditioned on performing a logical transformation of data corresponding to the first file, the logical transformation related to aggregating the first file, in a first file system format, with the second file in a second file system format.