Position to Element - X'2B'
Table 1 shows the format of the Position to Element command for the tape library.
| Byte | Bit 7 MSB |
Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 LSB |
|---|---|---|---|---|---|---|---|---|
| 0 | Operation Code (X'2B') | |||||||
| 1 | LUN (Obsolete) | Reserved | ||||||
| 2 | Transport Element Address | |||||||
| 3 | ||||||||
| 4 | Destination Element Address | |||||||
| 5 | ||||||||
| 6 | Reserved | |||||||
| 7 | Reserved | |||||||
| 8 | Reserved | Invert (B'0') | ||||||
| 9 | Vendor Specific (B'00') | Reserved (B'0000') | Flag (B'0') | Link (B'0') | ||||
This command positions the transport element (the picker) in front of the destination element specified.
The following tape library-specific parameters apply:
- Transport Element Address: The following values apply. For any of these
values, the library selects an MTE based on optimal availability and performance.
X'0000' X'0001' X'0002' - Destination Address: The valid element address for this field depends on
the library's configuration. See SCSI element addresses for more
details. Note: The Medium Transport Element is not capable of storing a media element. If this element address is specified as a Destination Address in a Position to Element command, the command is presented CHECK CONDITION status with associated sense data of 5/2101 (Illegal Request, Invalid Element Address).
For further information on element addresses and descriptions, go to the sections about Mode Page X'1D': Element Address Assignment and Read Element Status - X'B8'.