Distributed File Service

The Distributed File Service element consists of two components, only one of which supports multilevel security:

Server Message Block (SMB) server – does not support multilevel security
zFS – supports multilevel security

zFS supports the creation of security labels on individual files and directories stored in zFS file systems. It invokes RACF® during authorization checking to determine whether the user is authorized to the object. It supports the name-hiding function.

Where to find more information

z/OS File System Administration