This may be interesting to some of you (us): Stephen Tweedie did some work to make a fault simulator to test I/O error handling. See here for short description: http://marc.theaimsgroup.com/?l=linux-kernel&m=102457399020069&w=2 The 2.4.19-pre10 patch is located at http://people.redhat.com/sct/patches/testdrive/ -- ~Randy