Operating instructions

3-6
SCSI REFERENCE 1012975
CHAPTER 3—IMPLEMENTING SCSI OPERATIONS
 Send Volume Match
These fields are used only if you have attached bar code labels to each data
cartridge and you have scanned the labels. Descriptions of these fields follow:
Label If the element location contains a cartridge whose bar code label has
been scanned, the Label field contains the cartridge label.
Label Valid The Label Valid field indicates whether the Label field is accurate,
as follows:
0 – The Label field is not accurate
1 – The Label field is accurate
The Label Valid flag is set to 0 after the autoloader is reset or when the
cartridge access port door is opened to indicate that a cartridge may have been
added or removed from the location. The Label Valid flag is set to 1 when the
label is successfully scanned.
Label Error The Label Error field indicates whether the bar code scanner was
unable to read the cartridge label, as follows:
0 – The bar code scan was successful, a reset condition occurred, or the
cartridge access port door was opened.
60 – The bar code scanner could not read the bar code label because there was
no label on the cartridge.
61 – A bar code label was detected but could not be read.
65 – The bar code label could not be read because of a hardware error.
Label Scan Retries The Label Scan Retries field contains the total number of
bar code scanner retries for each cartridge. This field is cleared when the
autoloader is reset.
Send Volume Match The Send Volume Match flag indicates whether the
cartridge label matched the template sent with the last SEND VOLUME TAG
(B6h) command, as follows:
0 – The label did not match the template
1 – The label matched the template
The REQUEST VOLUME ELEMENT ADDRESS (B5h) command references
the Send Volume Match flag for the cell and sets it to 0 after the label
information is returned to the initiator. This flag is also set to 0 when the
autoloader is reset or when the cartridge access port door is opened.