Fujitsu MCJ3230SS manual Block descriptor, Mode, Read/write error recovery

4.3 SCSI Commands

Table 4.13 Block descriptor

Bit	7	6	5	4		3	2	1	0
Byte
0				Density Code (00h)
1-3				Number of Blocks
4					Reserved
5-7				Block Length

Table 4.14 shows the format of the Mode Page field.

Table 4.14 Mode page

Bit		7	6	5	4		3	2	1	0
Byte
0		PS	0				Page Code
1					Page Length (n-1)
2-n					Mode Parameters
(1)	Read/write error recovery page
		Table 4.15 Read/write error recovery page
Bit		7	6	5	4		3	2	1	0
Byte
0		PS (1)	0				Page Code (01h)
1					Page Length (0Ah)
2		AWRE	Reserved	Reserved	RC		Reserved	PER	Reserved	DCR
3					Read Retry Count
4-7					Reserved
8					Write Retry Count
9-11						00h

If the Automatic Write Reallocation Enabled (AWRE) bit is 0, no automatic alternate block assignment is made by the WRITE (6), WRITE (10), or WRITE AND VERIFY command. If the AWRE bit is 1, an automatic alternate block assignment function is enabled.

If the Read Continuous (RC) bit is 0, an error is reported if an uncorrectable data error is detected in the READ (6) or READ (10) command. If the RC bit is 1, the command transfers the erroneous data and ends normally even if an uncorrectable data error is detected.

If the Post Error (PER) bit is 0, the command reports GOOD status if an error is corrected with the error recovery process. If the PER bit is 1, the command reports CHECK CONDITION status if an error is corrected with the error recover process. The Sense Key is then set to RECOVERED ERROR.

RECOVERED ERROR is reported when:

C156-E224-01EN 4-15