For Linux, you need root authority to mount and unmount the partitions, and to format and partition the volumes using dasdfmt and fdasd.

For z/OS®, you need authority to run ADRDSSU, which is the program that is invoked when using DFSMSdss. z/OS treats the Linux partitions as data sets. Also, you can prevent unauthorized access of the Linux partitions by z/OS applications and users by using RACF® or an equivalent security product.