Michael suggests a good plan: > > Then I use Adager to expand the capacity of the detail set to > > 213,000,000. > > > < balance snipped > > -------------------------------------------------------------- > Why are you using Adager to expand data sets to larger values? > Just use Adager to enable DDX by putting in a capacity of: > IMPOSSIBLY LARGE NUMBER, CURRENT NUMBER OF > ENTRIES, EXPANSION FACTOR (NUMBER OR PCT%). > > Then just work on autopilot and not worry about filling the > detail set. We have been successfully running DDX on all our large, active Detail datasets for years now; never had a problem; works fine. SIDEBAR # 1: All else being about equal, probably a good idea to make DDX increments a little on the "larger" side instead of "smaller"; to avoid getting a lot of small fragments scattered all over the volume set.... On our larger multi-million record Details, I have used 25K or more as DDX increment values... SIDEBAR # 2: In Mike's above, note that if you are not on the latest version of IMAGE that implements MPE Large Files for TurboIMAGE datasets and try and apply too high a definition of "IMPOSSIBLY LARGE" to maximum capacity, you will hit the 4GB non-Jumbo file- size limit for DDX-enabled datasets... We "bumped in" to that a few months ago; when I tried to set DDX max cap up to 16,000,000.... Media-record length for that dataset is 134 words. When I asked for 16M, answer I got back was ~~ "Sorry -- Can only give 15,901,898." Ken Sletten * To join/leave the list, search archives, change list settings, * * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *