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
Log Sense Command (4Dh)
Quantum SuperLoader 3 Software Interface Guide 23
Log Sense Command (4Dh)
The LOG SENSE command allows the host to retrieve statistical
information maintained by the media changer about its own hardware
parameters.
Figure 11 LOG SENSE
Command Descriptor Block
Bit
Byte76543210
0
Operation Code (4Dh)
1
Logical Unit Number Reserved PPC (0) SP(0)
2
PC Page Code
3 - 4
Reserved
5 - 6
(MSB)
Parameter Pointer
(LSB)
7 - 8
(MSB)
Allocation Length
(LSB)
9
Unused Reserved Flag Link