id summary reporter owner description type status priority milestone component version resolution keywords cc launchpad_bug 1465 "Move ImmutableShare to backend specific module, add ""backend"" interface to Storage Server, use twisted's FilePath" Zancas zancas " As a first step in implementing a pluggable backend, move !ImmutableShare to a module that is specific to the Disk backend. The Disk backend is the backend that corresponds to the current default storage medium. !StorageServer no longer communicates directly with the filesystem for purposes of setting up storage, instead it communicates with a backend ""core"" object that is specific to the type of storage. A Core class lives in each backend specific module along with the corresponding !ImmutableShare. " enhancement closed major undecided code-storage 1.8.2 fixed review-needed zooko