4.3 Format Commands

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) 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."

C141-C013

243

Page 247
Image 247
Fujitsu MBA3300RC, MBC2036RC, MBC2073RC, MBA3147RC, MBA3073RC specifications Format Commands