>What does 'Total Buffer Requests' mean if it is a negative value? And 'Cache
>Hit Pct' is zero?

That's the kind of thing that results from a counter overflow.  Most likely,
your server has been up so long that this has happened.  Programmers should
allocate counters of sufficient capacity to keep this from occurring in
ordinary operations.  Consider doing periodic 'RESet BUFPool's.

  Richard Sims, BU