When i am using 'TSO REV' command to view the tape file, i am getting below message. Could you tell me why i am not able to view the tape file and what can be done to solve this,
Command: TSO REV 'venkat.abc.test'
"DATA SET venkat.abc.test NOT ALLOCATED, VOLUME NOT AVAILABLE+
VOLUME NECESSARY TO SATISFY YOUR REQUEST NOT ON SYSTEM, AND CANNOT BE MOUNTED"