NFS: SUN’s Implementation
System Call Layer
Virtual File System Layer
Local
OS
NFS Client
request to
server
client
VFS layer: keeps a table
of v-nodes (virtual i-nodes)
for each open file.
a v-node points to either an
i-node kept by the local OS,
or to a r-node (remote i-node)
kept by the NFS client for
remote files.
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