Log sense command (4dh) (continued) – Quantum Instruments DLT 7000 User Manual
Page 168
SCSI Commands
5-64
Quantum DLT 7000 Tape System
LOG SENSE Command (4Dh) (continued)
Table 5–33 Log Parameters for Device Status LOG SENSE Page Field Descriptions
(continued)
Field Name
Description
DU
Disable Update. Always 0.
DS
Disable Save. Not supported. This bit always set to 1.
TSD
Target Save Disable. When = 0, indicates that the target provides a target-
defined method for saving log parameters. When = 1, indicates that either the
target does not provide a defined method for saving log parameters or that
the target-defined method has been disabled by the initiator.
ETC
Enable Threshold Comparison. Threshold checking is not supported on this
page. Always set to 0.
TMC
Threshold Met Criteria. Always 0.
LP
List Parameter. Always set to 0 (parameter codes treated as data counter).
Bit
Byte
7
6
5
4
3
2
1
0
0
Reserved
ClnR
ClnQ
ClnEx
1 - 3
(MSB)
Reserved
(LSB)
Figure 5–31 Log Parameters Format for Device Status LOG SENSE Page Parameter
0001h (Cleaning Related)
Table 5–34 Log Parameters for Device Status LOG SENSE Parameter 0001h (Cleaning
Related) Field Descriptions
Field Name
Description
ClnR
Set to 1 if a cleaning required condition exists. When the
condition clears, this status is also cleared.
ClnQ
Set to 1 if a cleaning request condition exists. When the
condition clears, this status is also cleared.
ClnEx
Set to 1 if the cleaning tape has expired. If no cleaning tape is
installed, this bit is cleared.