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
Release Unit (6) Command (17h)
Quantum SuperLoader 3 Software Interface Guide 116
Release Unit (6) Command (17h)
The RELEASE UNIT command releases the media changer if it is currently
reserved by the requesting initiator. It is not an error to release the media
changer if it is not currently reserved by the requesting initiator. If the
media changer is reserved by another initiator, however, it is not
released; the media changer is only released from the initiator that issued
the
RELEASE command. Element reservations are not supported.
Third party reservations are not supported by this command.
RELEASE
ELEMENT (10)
should be used instead.
Figure 68 Release Unit (6)
Descriptor Block
Bit
Byte76543210
0
Operation Code (17h)
1
Logical Unit Number Obsolete Rsv’d
2 - 4
Reserved
5
Unused Reserved Flag Link