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2 sense data basic information – FUJITSU MAS3367 User Manual

Page 236

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Sense Data Error Recovery Methods

5 - 2

C141-E167

Bit
Byte

7

6

5

4

3

2

1

0

0

Valid

X ‘70’ or X ‘71’ (Error Code)

1

X‘00’

2

0

0

ILI

0

Sense Key

3

MSB

4

5

Information

6

LSB

7

X ‘28’ (Additional Sense Data Length)

8

MSB

9

10

Command Inherent Information

11

LSB

12

Sense Code

13

Sub-sense Code

14

X‘00’

15

SKSV

16

Sense Key Inherent Information

17

18

0

0

0

0

IDD SCSI ID

19

CDB Operation Code

20

47

Figure 5.1

Expanded sense data format

5.1.2

Sense data basic information

Bytes 0 to 17 of the sense data are basic information which show the contents of the error that has
occurred. The INIT can know the contents of the error and the key information that is necessary for
recovery processing by analyzing this basic information. Each field and the meanings of bits in the
sense data basic information are explained below.

(1)

Valid

When this bit is “1,” it indicates that the values shown in the information field (bytes 3 to 6) are
valid. On the other hand, when this bit is “0”, it indicates that the information field does not contain
valid information.

Detailed Information

Basic
Information

Additional
Information

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