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
Persistent Reserve In Command (5Eh)
Quantum SuperLoader 3 Software Interface Guide 76
Table 37 Persistent
Reservation Type Codes
Code Name Description
0h Obsolete
1h WRITE
Exclusive
READS: Shared; any application client on any initiator may execute
commands that perform transfers from the target to the initiator.
WRITES: Exclusive; any command from any initiator other than the
initiator that holds the persistent reservation that attempts a transfer
to the target results in a reservation conflict
ADDITIONAL RESERVATIONS: Allowed; any initiator may reserve
the logical unit, extents, or elements as long as the persistent
reservations do not conflict with any reservations already known to
the device server.
2h Obsolete
3h Exclusive
Access
READS: Exclusive; any command from any initiator other than the
initiator holding the persistent reservation that attempts a transfer
from the target results in a reservation conflict.
WRITES: Exclusive; any command from any initiator other than the
initiator holding the persistent reservation that attempts a transfer
to the target results in a reservation conflict.
ADDITIONAL RESERVATIONS: Restricted; any PERSISTENT
RESERVE OUT
command with the Reserve service action from any
initiator other than the initiator holding the persistent reservation
results in a reservation conflict. The initiator that holds the
persistent reservation can reserve the logical unit, extents, or
elements as long as the persistent reservations do not conflict with
any reservations already known to the device server.
4h Obsolete