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
Send Diagnostic Command (1Dh)
Quantum SuperLoader 3 Software Interface Guide 135
Send Diagnostic Command (1Dh)
The SEND DIAGNOSTIC command directs the media changer to perform
its self-diagnostic tests.
Figure 79 Send Diagnostic
Descriptor
Table 61 Send Diagnostic
Command Data
Bit
Byte 7654 3 210
0
Operation Code (1Dh)
1
Logical Unit Number PF (0) Reserved Selftst DevOfl UnitOfl
2
Reserved
3 - 4
(MSB)
Parameter List Length
(LSB)
5
Unused Reserved Flag Link
Field Description
PF
Page Format. Not supported; must be 0.
Selftst
Self Test. A Selftst bit of 1 directs the media changer to
perform its default self test. A
Selftst bit of 0 is not
supported.
DevOfl
Device Off-line. This bit is used in conjunction with
Selftst and UnitOfl to specify the type of testing to be
done. This bit must be set to 0.