Maxtor 10K V 5.11.2LOG SENSE Log Pages

5.11.2LOG SENSE Log Pages

The log pages that are returned from the drive have a common format that is shown in Table 5-43.Each page contains a 4-byte header followed by one or more log parameters. Refer to Table 5-44. Table 5-45contains the format for the Generic Log Parameter and Table 5-46describes the fields.

Table 5-43LOG SENSE Log Page Format-Data Format

Bit	7		6	5	4		3	2	1	0
Byte
0		Reserved					Page Code
1						Reserved
2 – 3					Page Length (n-3)
4 to					Log Parameter (first)
x+3					(length x) 1
n-y+1					Log Parameter (last)
to n						(length y) 1

Note:

1Length x or y is the sum of parameter header and parameter data

value bytes.

Table 5-44LOG SENSE Log Page Format-Field Descriptions

Field

Description

Page Code

The page code as given in Table 5-39.

Page Length

The allocation length for the page minus the

4-byte header.

One or more log data entities that are returned as par of

a Log Page. Each Log Parameter starts with a 4-byte

Log Parameter

header followed by one or more bytes of value data. In

most cases, the parameter value is a 4-byte longword

that contains the present value of an error or perfor-

mance counter. See Table 5-45for the format of a

generic log parameter.

Table 5-45Generic Log Parameter-Data Format

Bit

7

6

5

4

3

2

1

0

Byte

0 – 1

Parameter

Code

2

DU

DS

TSD

ETC

TMC

LBIN

LP

3

Page Length (n-3)

4 – n

Parameter Value

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