Operating instructions

23-2
SCSI REFERENCE 1012975
CHAPTER 23—SEND VOLUME TAG (B6h)
Notes: Refer to Table 23-1 for a description of each of these errors.
 In a multi-initiator environment, you should reserve the entire autoloader using
the RESERVE (16h or 56h) command before you use the SEND VOLUME TAG
command. Do not issue the RELEASE (17h or 57h) command until after you
have successfully obtained data with the REQUEST VOLUME ELEMENT
ADDRESS command. You should issue the commands in the following order:
1. RESERVE (16h) for the entire autoloader
2. SEND VOLUME TAG (B6h)
3. REQUEST VOLUME ELEMENT ADDRESS (B5h)
4. RELEASE (17h)
 The autoloader supports only the volume tag information scanned on the bar
code label on the cartridges.
 The autoloader does not allow the modification of volume tag information once
it has been read from the bar code label.
 The autoloader will not match the label of a cartridge with the Volume
Identification Template Field in the Send Volume Tag Parameter List if any of the
following errors occur while it is scanning the cartridge:
 Cannot read bar code label
 Tape drive not installed
 No bar code label
23.2 WHAT YOU SEND TO THE AUTOLOADER
Element Type Code – Byte 01, Bits 3 through 0
This field defines the elements to be scanned for a match to the template
contained in the parameter list, as follows:
0h – All Element Types
1h – Medium Transport Element (cartridge loader)
2h – Storage Element (cartridge cells)
4h – Data Transfer Element (tape drive)
For an Element Type Code of 0h, the element types are reported in element
address order, beginning with the Starting Element Address.
Note: If you specify element type code 3h, the autoloader returns Good status
and an Element Status header with all fields set to 00h.