Element Type 3: Import/Export (DVCID=B'0')

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Table 1. Element Type 3: Import/Export Element Descriptor (DVCID = B'0')
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0-1 Element Address
2 OIR
(B'0')		 CMC InEnab ExEnab Access Except ImpExp Full
3 Reserved
4-5 ASC/ASCQ
6-8 Reserved
9 SValid Invert (B'0') Reserved
10-11 Source Storage Element Address
12-47 Primary Volume Tag Information
48-51
or
12-15		 Reserved
  • Element Address: The range of element addresses that are reported in this field depends on the library configuration. For more information, see SCSI element addresses.
  • CMC: Connected Media Changer. The following values apply:
      B'0' Exports are to the I/O station and Imports are from the I/O station.
      B'1' Exports are to a connected media changer and Imports are from a connected media changer.
  • InEnab: Import Enable. InEnab indicates that this element supports movement of media into the scope of the library.
  • ExEnab: Export Enable. Indicates that this element supports movement of media out of the scope of the library.
  • Access: The following values apply:
      B'0' Indicates that access to the Import/Export element by a Medium Transport Element is denied.
      B'1' Indicates that access to the Import/Export element by a Medium Transport Element is allowed.
    Note: Examples of when access would be denied include (1) when the I/O Station door is open and (2) when a cartridge is moved to the I/O slot from a storage slot or drive that is part of a logical library different from the logical library that reports the status.
  • Except: The following values apply:
      B'0' The element is in a normal state.
      B'1' The element is in an abnormal state.
  • ImpExp: Import/Export. The following values apply:

    When the CMC bit = B'0'

      B'0' Indicates the unit of media in the Import/Export Element was placed there by the Medium Transport Element.
      B'1' Indicates the unit of media in the Import/Export Element was placed there by an operator.

    When the CMC bit = B'1'

      B'0' Indicates the unit of media in the Shuttle Station was placed there by the Medium Transport Element.
      B'1' Indicates the unit of media in the Shuttle Station was placed there by the shuttle car.
  • Full: The following values apply:
      B'0' The element does not contain a cartridge.
      B'1' The element cell contains a cartridge.
  • ASC/ASCQ: More Sense Code/Additional Sense Code Qualifier. The ASC/ASCQ: field might provide specific information on an abnormal element state when the Except bit is set to B'1'. The following values apply:
      11/00 Unable to Read Bar Code Label
      81/00 Status is Questionable (for example, the door is open)
  • SValid:
      B'0' Indicates that the Source Storage Element Address field is not valid.
      B'1' Indicates that the Source Storage Element Address field is valid.
  • Invert: The tape library does not invert cartridges.
  • Source Storage Element Address: When SValid is B'1', this field provides the address of the last storage element from which this cartridge was moved.
  • Primary Volume Tag Information: The presence or absence of this field is indicated by the PVolTag field in byte 1 of the Element Status Page. To view the content of this page, go to the section about Element Status Page). This is a 36 byte ASCII field that contains the cartridge bar code label, left-adjusted and padded on the right with blanks.
  • Reserved: Bytes 48-51 (bytes 12-15 if PVolTag is set to B'0').