Log Select Command (4Ch); Table 5-40 Log Select Command Descriptor Block-Data Format; Table 5-41 Log Select Command Descriptor Block-Field Descriptions - Maxtor ATLAS 10K IV User Manual

SCSI Description
5.12

LOG SELECT Command (4Ch)

The drive collects and stores performance data and error summaries in counters. The
LOG SELECT command is used to zero these counters. The LOG SELECT
command is a complementary command to the LOG SENSE command. The format
of the LOG SELECT CDB and a description of the fields follows in Table 5-40 and
Table 5-41 respectively.
Table 5-40
Bit
Byte
0
1
2
3 – 6
7 – 8
9
Table 5-41
5-32 Maxtor Atlas 10K IV
LOG SELECT Command Descriptor Block-Data Format
7 6 5
Reserved
PC
LOG SELECT Command Descriptor Block-Field Descriptions
Field
PCR
SP
PC
Parameter
List Length
4 3
Operation Code (4Ch)
Reserved
Reserved
Parameter List Length
Control
Description
Parameter Code Reset. Must be 1. Causes all the imple-
mented counters to be set to 0.
Save Parameters. A value of 1 indicates that certain
counters are to be cleared from non-volatile memory.
Page Control. Must be 01b OR 11b.
Must be 0.
2 1 0
PCR SP