Checking your job status with SM50 (processor type BTC)is
more accurate then SM37. SAP updates the tables TBTCO wheneveryour
background jobs status change. If SAP is shutdown, the currentjobs
might not be update ontime to the table. (e.g. a background job wasshown
as Active (SM37), in fact it real status should be Cancelled.
The type of work process:
DIA - work process for executing dialog steps in user transactions
UPD - update process for executing U1 (time-critical) database changes
UP2 - update process for executing U2 (non-critical) database changes
ENQ - for setting and releasing locks on SAP lock objects
