gri6507,

Your reply in confusing to me. You link to a GmailFS tool implemented in Python, then you say you have searched but can't find a Perl equivalent (I suggested a module from Cpan). Perhaps you need to clarify things by reading that page you link to again, finding out what it is and how it works, and if this is what your interested in. Or are you referring to Google File System which is not to be confused with GmailFS. An extract from the wiki:

"Also it's noteworthy that this filesystem should not be misunderstood as it were GoogleFS, the filesystem created by Google for use in heavyweight servers hard storage, adjusted for performance and large-file handling features."

Martin