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
Write Buffer Command (3Bh)
Quantum SuperLoader 3 Software Interface Guide 140
Write Buffer Command (3Bh)
The WRITE BUFFER command is used with READ BUFFER as a diagnostic
function and for downloading and updating microcode (firmware).
Figure 83 Write Buffer
Descriptor
Table 64 Write Buffer
Command Data
Bit
Byte765 4 3210
0
Operation Code (3Bh)
1
Logical Unit Number Reserved Mode
2
Buffer ID
3 - 5
(MSB)
Buffer Offset
(LSB)
6 - 8
(MSB)
Transfer Length
(LSB)
9
Unused Reserved Flag Link
Field Description
Mode The media changer supports the following values within the field. If any other
value is set, the media changer terminates the command with
CHECK
CONDITION
status and an ILLEGAL REQUEST sense key set.