If any of the volumes listed in message IEA851I are to be mounted, enter REPLY id,‘dev,dev,dev,...’ where each dev is a device number for a device on which you will mount a volume. You can optionally precede a device number with a slash (/). Any valid direct access devices can be used, including those that already have volumes mounted on them. Mount the required volumes on the devices in the reply, after message IEA860A appears.

If no volumes are to be mounted, enter REPLY id,‘U’.