Fujitsu MAS3367FC Product/Maintenance Manual page 73

(2) FORMAT UNIT command
Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT command
initializes all sides of the disk using the P lists, verifies data blocks after initialization, and allocates
an alternate block for a defect block detected with verification. With initialization, the value "00" is
written into all bytes of all logical data blocks. Only the position information of defect blocks
detected with verification is registered in the G list. The specifications are as follows:
a. Specifying CDB
Specify 0 for the "FmtData" bit and the "CmpLst" bit on CDB, 000 for the "Defect List Format"
field, and data pattern written into the data block at initialization for the "initializing data pattern"
field.
b. Format parameter
When the values in step a. are specified with CDB, the format parameter is not needed.
C141-E198
5.5 Checking Operation after Installation and Preparing the IDD for Use
5-11