This message is one of a series that can appear during reconfiguration processing (such as processing for a CONFIG CHP,OFFLINE,FORCE command). The messages warn the operator about negative effects from CONFIG processing and ask if CONFIG processing should continue.

The channel being forced offline has one or more reserved devices. If CONFIG processing continues, one or more of the devices will be released from the reserve and become available to any systems sharing them. I/O operations on these devices may not have completed normally; when the devices are released, they may contain damaged or incomplete data. Any sharing systems must be prevented from using any volumes that contain damaged or incomplete information.