When the target needs to perform a long error-recovery procedure (typically one that lasts more than one second) it can enter the "extended contingent allegiance condition". This may be necessary in high performance systems or in cases where there is a danger that initiator may reset the target after a short timeout interval, thereby aborting the error-recovery procedure. As in the contingent allegiance condition, the target is allowed to use the "busy" response to incoming commands and to suspend servicing of any recent commands that are still in its execution queue.