In addition to the usual
directory and file content, additional security-related information
is stored in the host for metadata-bound data.
-
For a physical library, the security
information consists of a subdirectory and file. The corresponding
metadata object is called a secured library object.
Note: On
z/OS, the security information
for a UNIX file system (UFS) library is stored as described above.
However, the security information for a
z/OS direct-access bound library
is instead stored within the bound library data set itself. For this
reason,
z/OS sites that choose to use metadata-bound libraries might
prefer the
z/OS direct-access bound library implementation to the
UFS library implementation.
z/OS sequential-access bound libraries
cannot be bound to metadata.
-
For a physical table, the security
information consists of information in the header. The corresponding
metadata object is called a secured table object.
The security information
includes the following:
-
an indication that access to the
physical data must be authorized by the metadata server
-
a record of the metadata location
of the metadata objects that correspond to the physical data
The security-related
information itself is host protected.