The amount of memory, in bytes, used by the Network File
System server to buffer file data.
Additional information:
Reports the amount of memory, in bytes,
reserved for use by the NFS server. An unfortunate
side effect of the implementation is initializing
the mass storage device sets this object back to the factory
default value. Also includes the memory used by
other firmware components in addition to the NFS
server. Returns <noSuchName>
status if attempting to access this object and there
is no storage device is installed.