<gr@eclipsed.net> (gabriel rosenkoetter) writes:

> The principle is that memory (even paged memory) is something that
> should not be run out to a file system unless absolutely necessary, so
> if there's a another machine within a cluster not using all of its
> physical RAM, let's put some pages in the space it's not using.

This approach sounds like the idea of xFS[1] applied to backing store. 

        - Nathan

[1] no, not the SGI XFS, the Berkeley xFS. 
    http://now.cs.berkeley.edu/Xfs/xfs.html