Hello,

I'm administering some RH 7.3 boxes and noticed that the "Available
Space" output column is not a direct subtraction. For example, the output:

"""
Filesystem 1k-blocks Used Available Use% Mounted on
/dev/cciss/c0d0p1 248911 98858 137202 42% /
"""

Calculating "1k-blocks - Used": 248911 - 98858 = 150053

Why doesn't it match the available space? I have been administering unix
based servers for a while, but this was something I never paid close
attention to because it was trivial. I'm assuming each file system has
some data structure that's accounted for in the Available space.

Thanks.

--
Mike