Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Pobierz pdf (Strona 100)

LOG SENSE Command (4Dh) SDLT 600 SCSI Interface Guide

4-58 January 2005 81-81200-02 REV A01

Figure 4-31. Log Parameters Format for Read / Write Compression Ratio LOG SENSE Page

(Parameter Codes 02h through 09h)

Table 4-35. Log Parameters for Read / Write Compression Ratio LOG SENSE Page — Field

Descriptions (Parameter Codes 00h and 01h)

Field Name Description

Parameter

Code

Parameter codes supported for the Read / Write Compression Ratio Page are

as follows (for codes 00h and 01h only; codes 02h through 09h are detailed

separately):

Code Description

00h READ Compression Ratio x 100

01h WRITE Compression Ratio x 100

DU Disable Update. Always set to 0.

DS Disable Save. Not supported. Always set to 1.

TSD Target Save Disable. Not supported. Always set to 1.

ETC Enable Threshold Comparison. Not supported. Always set to 0.

TMC Threshold Met Criteria. Always set to 0.

LBIN List Binary. Not used.

LP List Parameter. The drive treats the parameter codes as data counters. Always

set to 0.

Bit

Byte

7 6 5 4 3 2 1 0

0 – 1

(MSB)

Parameter Code

(LSB)

2 DU DS TSD ETC TMC LBIN LP

3 Parameter Length (04h)

4 – 7

(MSB)

Counter Value

(LSB)

1 2 ... 95 96 97 98 99 100 101 102 103 104 105 ... 293 294

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Quantum 1200 Series DAT Autochanger Podręcznik Użytkownika Strona 100