CBR0157I Cannot find real library for standalone drive drive-name.
Explanation
During OAM initialization, the real library could not be located for standalone drive drive-name.
System action
This drive will be unknown to OAM until problem is fixed.
Operator response
Notify the system programmer.
System programmer response
Check your ISMF library and drive definitions for this drive, and correct the definition for this drive. Once OAM is started again if the drive is correctly defined, it will be known to OAM.
Source
Object Access Method (OAM)
Routing Code
2
Descriptor Code
4