SCSI Commands

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

 

7

6

 

5

 

4

 

3

2

1

0

Byte

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

Reserved

 

 

 

ClnR

ClnQ

ClnEx

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(MSB)

 

 

 

 

 

 

 

 

 

 

1 - 3

 

 

 

 

 

 

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.

 

 

 

 

 

 

 

 

5-64

 

Quantum DLT 7000 Tape System

Page 168
Image 168
Quantum Instruments DLT 7000 manual Target-defined method has been disabled by the initiator

DLT 7000 specifications

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