CBR4050I Internal volume serial number internal-volser is invalid.
Explanation
An error has been detected during Library Automation Communication Services (LACS) parameter validation processing for the MOUNT or VERIFY function in a Manual Tape Library. The internal volume serial number from the mounted tape volume did not conform to the label requirements for system-managed tape libraries. For volumes in an automated tape library dataserver, the volser should consist entirely of numerics (0-9) and upper-case alphabetics (A-Z), with no imbedded blanks (unless the unlabeled facility is being used). For volumes in a manual tape library, the volser must conform to the MVS™ JCL standards, including numerics, (0-9), upper-case alphabetics (A-Z), and the national and special character sets (@ $ # , . / ' ( ) * & + - =), with no leading or imbedded blanks.
System action
The LACS request fails with a parameter error return code. Messages issued by the caller of LACS are written concurrently with this message.
System programmer response
Follow the instructions documented in the messages issued by the caller.
Source
Object Access Method (OAM)
Routing Code
Set by the caller.
Descriptor Code
Set by the caller.