Fujitsu MAA3182FC Series, Руководство пользователя

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C141-E054-02EN 5 - 4
(6) Additional sense data length
This field indicates the length (number of bytes) after byte 8 of the sense data. The value
shown in this field shows the length of sense data provided by the IDD without relation to the
value specified in the “Transfer byte length” in the CDB of the REQUEST SENSE command.
The length of the IDD’s sense data is fixed at 48 bytes and this field always indicates X ‘28’
(40 bytes).
(7) Command inherent information
This field indicates information that is inherent to the command where the error occurred. The
only command for which the value in this field is valid in the IDD is the REASSIGN
BLOCKS command. See the description of the REASSIGN BLOCKS command (Section
3.3.2) concerning details of the information shown in this field.
(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).
(a)
Bit
Byte
7 6 5 4 3 2 1 0
15 SKSV 0 0 0 0 0 0 0
16 X‘00’
17 Number of retries executed
(b)
Bit
Byte
7 6 5 4 3 2 1 0
15 SKSV 0 0 0 0 0 0 0
16 [MSB]
17 [LSB]
Figure 5.2 Sense key inherent information
Progressing rate of formatting