3 cfs \- cache file system
28 is a user-level file server that caches data from remote
29 files onto a local disk.
30 It is normally started by the kernel at boot time, though users may start
33 is interposed between the kernel and a network connection to a
34 remote file server to improve the
35 efficiency of access across slow network connections such as modem
37 On each open of a file
39 checks the consistency of cached information and discards any old
40 information for that file.
47 after connecting to the file server.
56 to connect to a remote file server.
66 as the cache disk partition.
73 to connect to a remote file server.
78 keep cache contents even if they might have come from a different server.
87 mount the remote file server without authentication;
92 reformat the cache disk partition.
95 the connection to the remote file server is on file
99 turn on statistics gathering. A file called
101 at the root of the caching file system can be read to get
102 statistics concerning number of calls/bytes on client and server
105 All 9P messages except
114 unchanged to the remote server.
117 is satisfied by cached data.
118 Otherwise, the file server is queried for any missing data.
122 Default file used for storing cached data.