File Systems: Limited Connectivity
n Symmetry
Client/Server or Peer-to-Peer relations
support in the fixed network and/or mobile computers
one file system or several file systems
one namespace for files or several namespaces
n Transparency
hide the mobility support, applications on mobile computers
should not notice the mobility
user should not notice additional mechanisms needed
n Consistency model
optimistic or pessimistic
n Caching and Pre-fetching
single files, directories, subtrees, partitions, ...
permanent or only at certain points in time