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 25
07h Last n Error Events Page (07h)
2Eh “TapeAlert Page (2Eh)” on page 29
30h “
Move Statistics Page (30h)” on page 31
31h “
Hard/Soft Error Statistics Page (31h)” on page 32
33h “
Device Wellness Page (33h)” on page 34
3Eh “
Device Status Page (3Eh)” on page 37
Parameter
Pointer
The
Parameter Pointer field allows the host to specify at which parameter
within a log page the requested data should begin. For example, if a page
supports parameters 0 through 5, and the
Parameter Pointer contains 3, then
only parameters 3, 4, and 5 are returned to the initiator. Similarly, if a page
supports parameters 1, 3, and 6, and the
Parameter Pointer contains 2, then only
parameters 3 and 6 are returned to the initiator.
If the
Parameter Pointer is larger than the highest numbered parameter on the
page, then the target terminates the command with
CHECK CONDITION status,
sense key set to
ILLEGAL REQUEST, and additional sense code set to INVALID
FIELD IN CDB
.
Note that parameters within a page are always returned in ascending order
according to parameter code.
If the target does not support a parameter code within this page, then it does
not return any data associated with this parameter.
Allocation
Length
This field specifies the maximum number of bytes that the initiator has
allocated for returning data. The host uses this field to limit the size of data
transfers to its own internal buffer size.
Field Name Description