1. A method for recovering a state of a virtualized file system, comprising: receiving, at a file virtualization device, a request from a client computing device to view one or more physical snapshots or to perform an operation on one or more physical snapshots, wherein each physical snapshot includes a time dependent state of at least a portion of the virtualized file system; obtaining, with the file virtualization device, one or more descriptor files from one or more of a plurality of file storage devices, wherein the one or more descriptor files are associated with at least the one or more physical snapshots; importing, at the file virtualization device, the one or more physical snapshots based on data in the one or more descriptor files; reconstituting, with the file virtualization device, a virtual snapshot including the one or more physical snapshots; and providing, with the file virtualization device, the reconstituted virtual snapshot to the requesting client computing device.