I\'ve got a load-balanced (not using Session state) ASP.Net 2.0 app on IIS5 running back to a single Oracle 10g server, using version 10.1.0.301 of the ODAC/ODP.Net drivers.
This error message can be thrown in the application logs when the actual issue is that the oracle database server ran out of space.
After correcting the space issue, this particular error message disappeared.