Fujitsu MAA3182FC Series, Руководство пользователя

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C141-E054-02EN 4 - 111
6) The number of defects reported by this command differs depending on the defect data
format.
•
When data are in the “Block Address Format,” defect position information is not
reported for portions which cannot be clearly accessed from the INIT.
•
When data are in the “Block Address Format” or the “Physical Sector Address
Format,” even if defects exist in multiple locations within that sector, that defect
information is reported by one defect descriptor.
•
When data are in the “Byte Distance from the Index Format,” all the registered defect
positions are reported when the P List is reported, but in the case of the “Block
Address Format” and the “Physical Sector Address Format,” the defect position
information is not reported for defects which do not have an influence on data block
read/write operations.
•
When data are in the “Byte Distance from the Index Format,” when the P List is
reported, multiple defect position information may be reported for a single sector, or 2
defective sectors may be reported as a single item of defect position information due
to defects which extend across sector boundaries.
7) In defect data in the block address format, all the physical defect position information on
the disk media cannot be described universally. For example, defect position information
in areas without block addresses (spare sectors, or cylinders which are not being used as
User Space or CE Space) cannot be described. The defect data in this format are provided
in order to preserve continuity with previous specifications, but it is recommended that as
much as possible, the INIT not use the “Block Address Format.”