Fujitsu MAP3735, MAP3367, MAP3147, MAS3735, MAS3367 Sksv MSB, Sense key inherent information

Sense Data Error Recovery Methods

(8)Sense code, sub-sense code

The codes which indicate the reason for the error displayed by the sense key in detail are reported in these fields. The INIT can decide procedures for error recovery according to the sense key and these fields. The sense code and sub-sense code are defined in Table 5.2.

(9)SKSV (sense key specific valid), sense key inherent information

When the sense key indicates one of “RECOVERED ERROR [=1],” “MEDIUM ERROR [=3]” or “HARDWARE ERROR [=4],” and the “SKSV” bit indicates “1,” indicates the number of times the IDD has attempted to recover from the detected error as shown in Figure 5.2 (a).

When the sense key indicates “NOT READY [=2]” and the “SKSV” bit indicates “1”, indicates the progressing rate of the formatting operation by the FORMAT UNIT command with [n/65536] as shown in Figure 5.2 (b) or the progressing rate of the drive self-test operation by the SEND DIAGNOSTICS command (Self-Test = 0).

(a)

	Bit	7	6	5		4		3	2	1	0
	Byte
	15	SKSV	0	0	0		0		0	0	0
	16						X‘00’
	17				Number of retries executed
(b)
	Bit	7	6	5		4		3	2	1	0
	Byte
	15	SKSV	0	0	0		0		0	0	0
	16	[MSB]			Progressing rate of formatting
							or
	17
				Progressing rate of Self-Test operation							[LSB]

Figure 5.2 Sense key inherent information

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