4.3 Format Commands

STPF (stop format)

When the defect list (P List or G List) necessary for executing the defect processing specified in this command, cannot be read from the disk media, this bit indicates whether to continue ("0" is specified) or terminate ("1" is specified) command processing, but in the HDD, this bit's specification is disabled, and the specified value is disregarded. When the necessary defect list cannot be read, this command is terminated with a CHECK CONDITION status. The sense data at this time indicate "MEDIUM ERROR [=3] / Primary defect list not found [=1C-01]" or "MEDIUM ERROR [=3] / Defect list error in primary list [=19-02]," if the P List cannot be read and "MEDIUM ERROR [=3] / Grown defect list not found [=1C-02]" or "MEDIUM ERROR [=3] / Defect list error in grown list [=19-03]," if the G List cannot be read.

Immed (Immediate)

"1": At the point when the CDB's legality is confirmed, or at the point when transfer of the defect list is completed, a "GOOD" status is reported.

"0": The specified operation is executed and the status byte is reported at the point when that operation is completed, then the command is terminated.

Defect list length

This field specifies the total number of bytes in the "Defect list" transferred from the INIT following the header. The byte length of the "Defect descriptor" which configures the defect list differs depending on its format and the value specified by this field must be a multiple of 8 when the defect descriptor is in the byte distance from the index format or the physical sector address format. When zero is specified in this field, it indicates that the defect list is not transferred.

The disk media defect processing method implemented during FORMAT UNIT command execution is specified by the CDB and by header of the format parameters transferred from the INIT. By specifying zero in the "Defect list length" field in the Format parameter header, the INIT can specify the control flags related to formatting processing without transferring the defect list (D List).

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Fujitsu MBA3147RC, MBC2036RC, MBC2073RC, MBA3300RC, MBA3073RC specifications Format Commands