BTW, in 8.x you can change global variables from the GUI, no need to edit the file any longer.
With this change also came changes to some defaults. Most of them so far seemed to make sense to me. The one here (new default for SmDeviceErrorThreshold being 5 instead of 0 aka Off), though, is a little icky. It's a fundamental change in expected behavior, and given the number of threads here that came up regarding it, it's not well received with old DP/OmniBack beards...
HTH,
Andre.