While a target is in a contingent allegiance condition it must retain the sense information that relates to the error that caused it to enter that condition. This can be a complex issue in configurations which contain more than one initiator. A well-designed target may be able to maintain sense data for one initiator while servicing commands from another initiator. If a check condition then needs to be reported to a second or third initiator then this may become prohibitively difficult. The SCSI definition of the contingent allegiance condition allows the target to use the "busy" response to incoming commands and to suspend servicing of any recent commands that are still in its execution queue.