Fujitsu MCJ3230SS manual Format progress indication bytes

Host Interface

Sense	ASC	ASCQ	Error description
Key
B	4E	00	OVERLAPPED COMMAND ATTEMPTED
4	53	00	MEDIA LOAD OR EJECT FAILED
5	53	02	MEDIUM REMOVAL PREVENTED
4	83	00	THERMAL ERROR

Table 4.47 shows the format of the Sense-Key Specific field. Progress Indication is valid only when Sense Key is NOT READY and the SKSV bit is 1. Otherwise, the field is set to 00h. This field is defined for the FORMAT UNIT command with the Immed bit set to 1.

Table 4.47 Format progress indication bytes

Bit	7	6	5	4	3	2	1	0
Byte
15	SKSV				Reserved
16-17				Progress Indication

Progress Indication indicates the rate of formatting completion when the denominator is 65536 (10000h).

INIT should not use the REQUEST SENSE command alone to check the ODD status. Because the REQUEST SENSE command is used by INIT to retrieve sense data that is held by the ODD on various occasions, the contents of the sense data depend on the results of the command executed previously.

Example: Response when the ODD is in Not Ready state When INIT issues the TEST UNIT READY command, the ODD ends processing with Check Condition Status and responds to the REQUEST SENSE command with Not Ready Sense Data. When the INIT issues the INQUIRY command, the ODD responds with Inquiry Data and ends processing with Good status. If INIT continuously issues the REQUEST SENSE command, the ODD responds with No Sense because the previous command has ended normally and the ODD holds no sense data.

4-30 C156-E224-01EN