Seems that the VATLSTxx parmlib member is still relevant. From the z/OS 2.5 MVS Initialization and Tuning Reference:
The VATLSTxx member contains an optional VATDEF statement followed by entries that define the mount and use attributes of DASD volumes. Use the VATDEF statement in VATLSTxx to specify a default use attribute. If you do not specify VATDEF, the system assigns a default of PUBLIC to those volumes that are not specifically assigned a use attribute in the VATLSTxx member or in a MOUNT command. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
