Log Select:(4C ); Table 6-16 Pcr And Parameter List Length Fields - Hitachi DK32EJ - Ultrastar Series 36.9 GB Hard Drive Reference Manual

6.3 LOG SELECT:(4C
Bit
Byte
0
1 Logical Unit Number
2
3
4
5
6
7
8
9 Vendor Unique
The LOG SELECT command provides a means for the initiator to manage statistical
information supported by the drive. The command descriptor block of LOG
SELECT provides for sending zero or more log pages during a DATA OUT phase.
The initiator can reset all the implemented log parameters to the drive-defined
default values by setting the PCR (parameter code reset) bit to one and the
parameter list length to zero. If PCR bit is one and the parameter list length is
greater than zero, the LOG SELECT command will be terminated with CHECK
CONDITION status.
sense code will be INVALID FIELD IN CDB. Table 6-16 shows all the setting
conditions.
PCR Parameter List Length
1 Equal to 0
1 Greater than 0
0 Don't care
LOG SELECT:(4C
6 COMMAND DESCRIPTIONS
)
H
7 6 5
0 1 0
PC
0
0 0 0
0 0 0
0 0 0
0 0 0
Parameter List Length (MSB)
Parameter List Length (LSB)
0 0 0
The sense key will be set to ILLEGAL REQUEST and the

Table 6-16 PCR and Parameter List Length Fields

)
H
4 3
Operation Code (4C
0 1
Reserved
0 0
Reserved
0 0
Reserved
0 0
Reserved
0 0
Reserved
0 0
Reserved
0 0
Reserved
0 0
Controller's Action
Reset all the implemented log parameters to
drive-defined default values
Terminates with CHECK CONDITION status
Log parameters will not be reset
OEM MANUAL:K6602771
2 1
)
H
1 0
PCR
0
0 0
0 0
0 0
0 0
0 0
Flag
0
Revision: 2 / Date: 2002.12.19
Page: 129 / 313
0
0
SP
0
0
0
0
0
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