[expert] disk buffering and cacheing

[David Rodgers]

I need to turn disk buffering and caching off ........ my machine hung and died today for the second time because the buff/cache ate all the memory .. i was running top at the time and the buff/cache was accounting for all but 15mb of 2 gigs of ram ....... there is no need for disk buffering for a mail server anyway ....... the data being read changes from minute to minute     David Rodgers