KS3A550E CVAFDIR FAILED FOR VOLUME [volser]; RC=[CVAF_return_code] CVSTAT=[CVAF_cvstat_code]

volser

Explanation
The collection task was unable to read the VTOC of the specified volume, for the specified reason.

System action
Collection for the indicated volume terminates. Other collection tasks continue.

User response
This message might be issued in response to a problem with the VTOC of the specified volume and not a program error. If the volume can be successfully accessed through other means (for example, ISPF option 3.4), then contact IBM® Software Support. 			 		