Thomas Kunz
Systems and Computer Engineering
11
File Systems: Coda
nApplication transparent extensions of client and
server
–changes in
the cache manager of a client
–applications
use cache replicates of files
–extensive,
transparent collection of data in advance for possible future use („Hoarding“)
nConsistency
–system
keeps a record of changes in files and compares files after reconnection
–if
different users have changed the same file a manual reintegration of the file into the system is necessary
–optimistic
approach, coarse grained (file size)
mobile client
cache
application
server