Fujitsu MAP3147, MAP3367, MAS3735 Sense Data Error Recovery Methods, Ili, Sksv, IDD Scsi ID

Sense Data Error Recovery Methods

Basic Information

Bit	7	6	5	4		3	2	1	0
Byte
0	Valid			X ‘70’ or X ‘71’ (Error Code)
1					X‘00’
2	0	0	ILI	0			Sense Key

3MSB

5	Information
6		LSB
7	X ‘28’ (Additional Sense Data Length)

8MSB

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

Additional	Detailed Information
Information
	47
	Figure 5.1 Expanded sense data format

5.1.2Sense 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.

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