/ACCESSED[=n]
Requires OPER (operator) privilege.
Specifies the number of directories to be maintained in system
space for ready access. You can specify a value n in the range
of 0 to 255. If you specify the qualifier /ACCESSED and omit
the number of directories, a default value of 3 is used. If you
specify a value greater than the current value, the new value is
effective immediately; otherwise, the new value is not effective
until the next time the volume is mounted.