SYSMAN> IO FIND_WWID
  %SYSMAN-I-OUTPUT, command execution on node SAMPLE
  On port _SAMPLE$PGA0:, the following tape WWIDs and their proposed
  device names have been found but not yet configured:

        [Device $2$GGA0]
        WWID=04100024:"DEC     TL800    (C) DEC3G9CCR82A017"

        [Device $2$MGA0]
        WWID=04100022:"DEC     TZ89     (C) DECCX939S2777"

        [Device $2$MGA1]
        WWID=04100022:"DEC     TZ89     (C) DECCX942S6295"

      This is a configuration example using a TL891 tape library. The
      SYSMAN command IO FIND_WWID displays a list of all previously
      undiscovered tape devices and their device names.

      Note that the overall WWID consists of everything to the right
      of the equal sign. Each such WWID is unique; however, the
      header portion might not be unique, because the header reflects
      only the basic type and length of the the WWID data.

      The SYSMAN IO FIND_WWID command automatically records
      the information about the new tape devices in
      SYS$SYSTEM:SYS$DEVICES.DAT:

        $ TYPE SYS$SYSTEM:SYS$DEVICES.DAT
        !
        ! Updated 23-OCT-2002 14:17:41.85:  DEC TL800
        !
        [Device $2$GGA0]
        WWID=04100024:"DEC     TL800    (C) DEC3G9CCR82A017"
        !
        !
        ! Updated 23-OCT-2002 14:17:41.93:  DEC TZ89
        !
        [Device $2$MGA0]
        WWID=04100022:"DEC     TZ89     (C) DECCX939S2777"
        !
        !
        ! Updated 23-OCT-2002 14:17:42.01:  DEC TZ89
        !
        [Device $2$MGA1]
        WWID=04100022:"DEC     TZ89     (C) DECCX942S6295"
        !

      You would then use the SYSMAN command IO CONFIGURE to configure
      these devices. After you completed this step, the SHOW
      DEVICE/FULL command would display the worldwide identifier
      of the tape.