Mac OS X,  Mac OS X Server,  Ubuntu,  Unix

vnode

The vnode table represents all file activity in UNIX. There is a unique vnode allocated in the vnode table for each active file, each current directory, each mounted-on file, text file, and the root.  To see the number of vnodes available in Mac OS X, look to sysctl for the kern.maxvnodes variable using something similar to the following command:

sysctl -A | grep vnode