Hi,
We also use MQSC in our company but we are facing 2 other problems. Maybe you also had this:
1) the MQSC receive location polls every 16ms. Because of that, the mainframe resource are decreasing. If we change the polling interval in the adapter to 10 s, it keeps polling with a rate of 16ms.
2)the biztalk adapter somethings doesn't sends commit's to the mainframe and then the running instances are increasing because the mainframe is waiting for a commit but I never arises.
Now, we going to place a MQSeries server between BizTalk and the mainframe, hoping that it will solve it.
Have you ever seen this problems?