Command Specifications

Table 4.22 Log parameter

 

 

Bit

 

7

6

5

4

3

 

2

1

0

 

 

 

Byte

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

Parameter Code (MSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

Parameter Code (LSB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

DU

DS

TSD

ETC

 

TMC

LBIN

LP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

Parameter Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

~

 

~

 

 

 

Parameter Value

 

 

~

 

 

 

n

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a. Parameter code

This field identifies the log parameter being transferred for that log page.

b. Byte 2

1)DU (Disable Update)

"1": The HDD does not update the log parameter value except in response to a LOG SELECT command that specifies a new value for the parameter.

"0": The HDD updates the log parameter value to reflect all events that are noted by that parameter.

2)DS (Disable Save)

"1": The HDD does not support saving that log parameter in response to LOG SELECT or LOG SENSE command with an "SP" bit of one.

"0": The HDD supports saving for that log parameter. The HDD saves the current parameter value in response to LOG SELECT or LOG SENSE command with a "SP" bit of one.

3)TSD (Target Save Disable)

The HDD does not support this bit. For LOG SENSE command (See 4.1.16), the HDD always report zero. Also, for this command, the HDD accepts this bit value of "1", but ignores its functionality.

4)ETC (Enable Threshold Comparison)

The HDD does not support this bit. For LOG SENSE command (See 4.1.16), the HDD always report zero. Also, for this command, the HDD accepts this bit value of "1", but ignores its functionality.

190

C141-C013

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Fujitsu MBA3073RC, MBC2036RC, MBC2073RC, MBA3300RC, MBA3147RC specifications Log parameter, Tsd Etc Tmc, Parameter code, Byte