We're running into a bug where the Synopsys tools blow up when the simulation datafile size reaches 2Gig. It appears that Solaris 2.6 is fine with 'largefile' as long as the application is appropriately set up for such.
Before I send the developer off to pound on Synopsys about the problem, does Data OnTapp 5.2.1 have a filesize limitation? I seem to remember reading "not
Solaris should be fine, DOT 5.2.1 should be fine, is there a possibility you're running NFSv2?
-s