CBR3509I Command rejected, device driver timeout error.

Explanation
 The device driver timed out while waiting for
an operation to complete.

System action
 The I/O operation is stopped. If the return code
was 700, the component which timed out was the autochanger SCSI; therefore,
the library is marked non-operational. If the return code was 704,
the component which timed out was the optical drive; therefore, the
drive is marked non-operational.

Operator response
 Contact hardware technical support to correct
the failing device.

System programmer response
 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