The dataset is owned by the userid, but it is being created on a volume that is managed by SMS and is in a MGMTCLAS to which he does not have access. The violation would appear in the ACFRPTRV report. To resolve the problem either allocate the dataset on a volume that the user does have access to, or modify the existing resource rule to allow the userid access to the management class shown in the IGD308I message. Check the SHOW CLASMAP display to determine if MGMTCLAS is being mapped to the resource type of MGM or if a new CLASMAP has been added to map STORCLAS to some other 3-character resource type. Note the resource class MGMTCLAS defaults to TYPE(MGM). If necessary, write a new resource rule for a new storage class.
Sample rule to allow access to MGMTCLAS MCVIRT:
Details on 'Secure DFSMS Storage and Management Classes' and 'Process Storage and Management Classes' can be found at the following link.