Lectures notes for 2010 - KTH

NFS Procedures
Procedure
NFSPROC_GETATTR
NFSPROC_SETATTR
NFSPROC_STATFS
NFSPROC_LOOKUP
NFSPROC_READ
NFSPROC_WRITE
NFSPROC_CREATE
NFSPROC_REMOVE
NFSPROC_RENAME
NFSPROC_LINK
NFSPROC_SYMLINK
NFSPROC_READLINK
NFSPROC_MKDIR
NFSPROC_RMDIR
NFSPROC_READDIR
Description
return the attributes of a file
set the attributes of a file
return the status of a filesystem
lookup a file - returns a file handle
read from a file, starting at specified offset for n bytes (upto 8192 bytes)
Write to a file, starting at specified offset for n bytes (upto 8192 bytes)
Writes are synchronous - i.e., server responds OK when file is actually written to disk
(this can often be changed as an option at mount time - but you can get into trouble)
Create a file
Delete a file
Rename a file
make a hard link to a file
make a symbolic link to a file
return the name of the file to which the symbolic link points
create a directory
delete a directory
read a directory
Maguire Network File System (NFS) 5: 66 of 77
maguire@kth.se 2010.03.21 Internetworking/Internetteknik