The owner of a tape can modify the protection attributes (password, access rights of other user, expiration date, location) and the remark fields using the EDIT-/MODIFY-VOLUME-ATTRIBUTES statements. The MAREN administrator can modify all attributes of all tapes.
If a foreign user ID is to have both read and write access to the tape TAPE01 stored under the user's own ID (making tapes shareable), this can be done as follows://modify-volume-attributes volume=tape01,protection=*par(user-access=*all-users)
The tape A11000 is to be protected against unauthorized access by a password C'XYZ'://modify-volume-attributes volume=a11000,protection=*par(new-pass=c'xyz')
The text MYTOOLS is to be entered in the catalog entry field REMARK in order to identify all tapes of the user’s ID://modify-volume-attributes volume=*all,remark=c'mytools'
All tapes containing the most recently created version of the file TAPE.SAVE (tape set) are to remain reserved for the user's own ID until the specified date://modify-tape-set-attributes select=*by-attr(file-name=tape.save,version=*latest),protection=*par(free-date=<date>)