We log opening and closing activity, which is performed in dual control. We have never had any reason to refer to the log and have never had an auditor or examiner request it. We have separate tracking of safe deposit box access, which of course involves vault access. We do not log each time the vault teller enters the vault during the day, nor would such a log have ever been of use.
Of course, now that I have said that, one of the BOL gurus will surely have a great reason why our procedures should be updated.