CBR3404I A command was issued to library library-name that contained an unsupported logical unit number.
Explanation
This is a microcode programming error. A SCSI command was received by library library-name which contained an unsupported logical unit number.
System action
The I/O operation is stopped.
Operator response
Notify the service representative.
System programmer response
If the problem recurs and if the program is not in error, search problem reporting databases for a fix for the problem. If no fix exists, contact the IBM® Support Center. If the sense data displayed in the previous CBR3300I message does not equal zero then obtain the SYS1.LOGREC error record.
Source
Object Access Method (OAM)
Routing Code
2,4,6
Descriptor Code
4