CBR3751I Device device-number in library library-name is unavailable.
Explanation
The specified device in the indicated library is no longer available. Either the operator has changed the state of the device through the library manager console, or a device failure was detected by the library.
System action
OAM varies the device offline for operator reasons to prevent the device from being allocated.
System programmer response
If the state of the device has been manually changed through the library manager console, the device can be made available from the library manager console. If the device became unavailable as a result of a device failure, search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center to perform the necessary repair.
Source
Object Access Method (OAM)
Routing Code
2,3,5
Descriptor Code
3