Fujitsu MCJ3230SS manual Request Sense Data, Error Code

4.3 SCSI Commands

Table 4.42 shows the format of the Sense Data field.

Table 4.42 Request Sense Data

Bit	7	6	5		4	3	2	1	0
Byte
0	Valid				Error Code (70h or 71h)
1					Reserved (00h)
2		Reserved (0h)					Sense Key
3-6					Information
7			Additional Sense Length (18h)
8-11			Command-Specific Information
12				Additional Sense Code
13			Additional Sense Code Qualifier
14					Reserved (00h)
15-17					Sense-key specific
18-31				Additional Sense Bytes

If the Valid bit is 1, the Information field is valid.

Error Code indicates the sense data format and type. See Table 4.43.

		Table 4.43 Error Code
	Error Code	Report timing
70h	(current error)	Reported for an error occurring during normal operation
71h	(deferred error)	Reported if a cached write operation causes an error while the
		write cache is enabled. If this sense data is reported, the
		command that reports the Check Condition status is not
		executed.

Sense Key summarizes the error. The meanings of the Sense Key values are listed in Table 4.44.

C156-E224-01EN 4-27