Operating instructions

5-2
SCSI REFERENCE 1012975
CHAPTER 5—INITIALIZE ELEMENT STATUS WITH RANGE (E7h)
Notes:
Support for the INITIALIZE ELEMENT STATUS WITH RANGE command is
provided for compatibility. The autoloader automatically re-establishes the
cartridge inventory immediately after power-on or whenever the cartridge
access port door is opened, then closed again. Issuing a INITIALIZE ELEMENT
STATUS WITH RANGE command causes the autoloader to attempt reading any
bar code labels that were unreadable during the most current inventory
operation.
For specifications for the bar code labels that can be used with the autoloader,
refer to the Exabyte Bar Code Label Specification for LTO Ultrium Cartridges.
For best bar code scan results, refer to Magnum 1x7 LTO Autoloader Product
Manual for information about positioning the bar code labels on data cartridges.
The bar code scanner is in a fixed position behind the cartridge access port. The
autoloader cannot scan a label on a cartridge that is in or protruding from the
tape drive.
5.2 WHAT YOU SEND TO THE AUTOLOADER
Range – Byte 01, Bit 0
The Range field indicates which elements are to be checked, as follows:
0 – Initialize all elements
1 – Initialize the range of elements specified by the Element Address and
Number of Elements fields
Element Address – Bytes 02 and 03
This field specifies the address of the element or the starting address of a series
of elements to be checked. This field is ignored when the Range field is 0.
Figure 2-1 on page 2-3 shows the default element addresses for the autoloader.
Note: When the Range field is set to 1, the specified address must be a valid
element address.
Number of Elements – Bytes 06 and 07
This field indicates the maximum number of elements to be checked. This field
is ignored when the Range field is 0.
If an initialize element status operation is performed on the cartridge loader,
the request does not count toward the total number of elements requested in
the Number of Elements field.
NBL (No Barcode Labels) – Byte 05, Bit 7
The autoloader ignores this field. If a cartridge does not have a bar code label,
the cartridge inventory indicates that the label is unreadable.