/sys$common/syshlp/helplib.hlb CMS, SET, LIBRARY, Qualifiers, /VERIFY (D)  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Allows you to set a library without performing the locking and
    verification process CMS normally performs. This speeds up the SET
    LIBRARY operation and allows a CMS library to be set even if the
    library is locked by another user. However, if the library needs
    recovery, the condition is not detected until another transaction
    is attempted.