The service information message (SIM) part of the DASD subsystem
exception series reflects the activity of devices needed for diagnostic
work.
Important: The 9343 and 9341 storage
control and the 9345 family of devices use the service information
message (SIM) part of the DASD subsystem exception series as the primary
indication that service is required. Only SIMs (A3s) or LINK incident
records (A2s) indicate maintenance actions.
OBR records are logged but not placed in the system exception report.