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
Request Sense Command (03h)
Quantum SuperLoader 3 Software Interface Guide 123
If the media changer receives an unsolicited REQUEST SENSE, it returns
sense data with the appropriate values in the
Sense Key, Additional Sense
Code
, and Additional Sense Code Qualifier.
The following illustration portrays the format of
REQUEST SENSE DATA.
Figure 75 Request Sense
Bit
Byte 7 65 4 3210
0
Valid Error Code
1
Obsolete
2
Filemark EOM ILI Reserved Sense Key
3 - 6
(MSB)
Information Bytes
(LSB)
7
Additional Sense Length
8 - 11
(MSB)
Command-Specific Information Bytes
(LSB)
12
Additional Sense Code (ASC)
13
Additional Sense Code Qualifier (ASCQ)
14
Sub-Assembly Code (0)
15
SKSV C/D Reserved BPV Bit Counter
16 - 17
(MSB)
Field Pointer
(LSB)