On the other hand in Version 7.6 the server tasks can be easily identified by means of the name (CHKDATA) and then also terminated if necessary.33. How can I terminate a CHECK TABLE?
The CHECK TABLE is not carried out using server tasks, rather directly by the user task on the B* tree. To terminate a TABLE CHECK, you must terminate the corresponding user task (I/O WAIT). To ensure that you do not inadvertently terminate the wrong user task in the task manager, make sure no other applications are active.