User's Guide
Table Of Contents
- Preface
- Theory of Operation
- Media Changer Commands
- Overview of Command and Status Processing
- Media Changer Command Descriptions
- Initialize Element Status Command (07h)
- Inquiry Command (12h)
- Load Unload Command (1Bh)
- Log Sense Command (4Dh)
- Mode Select (6) / (10) Command (15h / 55h)
- Mode Sense (6) / (10) Command (1Ah/ 5Ah)
- Move Medium Command (A5h)
- Persistent Reserve In Command (5Eh)
- Persistent Reserve Out Command (5Fh)
- Position to Element Command (2Bh)
- Prevent/Allow Medium Removal (1Eh)
- Read Buffer Command (3Ch)
- Read Element Status Command (B8h)
- Release Element (10) Command (57h)
- Release Unit (6) Command (17h)
- Report Device Identifier Command (A3h)
- Report LUNS Command (A0h)
- Request Sense Command (03h)
- Reserve Element (10) Command (56h)
- Reserve Element (6) Command (16h)
- Send Diagnostic Command (1Dh)
- Set Device Identifier Command (A4h)
- Test Unit Ready Command (00h)
- Write Buffer Command (3Bh)
- Index

Chapter 2 Media Changer Commands
Read Element Status Command (B8h)
Quantum SuperLoader 3 Software Interface Guide 111
Table 52 Data Transfer
Element Descriptor
10-11
Source Storage Element Address
•••
(36 bytes)
Primary Volume Tag Information
(field omitted if PVOLTAG=0)
•••
(1 byte)
Reserved Code Set
(1 byte)
Reserved Identifier Type
(1 byte)
Reserved
(1 byte)
Identifier Length
•••
(16 bytes)
Drive Serial Number
(field omitted if Identifier Length = 0)
Field Name Description
Access When set to 1 it indicates access to the data transfer
element by the medium transport element is allowed.
When set to 0 it indicates access is denied. This may
occur if the device is performing an auto clean
operation.
Not Bus This field is sent as 0. The data transfer element is on
the same bus as the media changer device.
ID Valid When set to 1, it indicates that the SCSI BUS address
field contains valid information.
LU Valid When set to 1, it indicates that the
Logical Unit Number
field contains valid information.
Bit
Byte 7 65 4 3210