Hitachi C4K60 Specifications - Page 47

If a non-volatile reserved area has not been established before the device receives a SET FEATURES ENABLE ADDRESS OFFSET MODE sub command, the command fails with Abort error status. Disable Address Offset Mode removes the address offset and sets the size of the drive reported by the IDENTIFY DEVICE command back to the size specified in the last non-volatile SET MAX ADDRESS / SET MAX ADDRESS EXT command. IDENTIFY DEVICE Word 83 bit 7.indicates the device supports the Set Features Address Offset Mode. IDENTIFY DEVICE Word 86 bit 7 indicates the device is in address offset mode. Before Enable Address Offset Mode A reserved area has been created using a non-volatile SET MAX ADDRESS command or SET MAX ADDRESS EXT command. User Accessible Area Reserved Area LBA 0 LBA R LBA M After Enable Address Offset Mode The former reserved area is now the user accessible area. The former user accessible area is now the reserved area. User Accessible Area (former Reserved Area) LBA 0 Reserved Area (former User Accessible Area) LBA M-R LBA M After SET MAX ADDRESS/SET MAX ADDRESS EXT command using the Value Returned by READ MAX ADDRESS Command/READ MAX ADDRESS EXT command User Accessible Area LBA 0 LBA M Set Feature Disable Address Offset Mode, hardware or Power on Reset returns the device to Address Offset Mode Disabled. Software reset returns the device to Address Offset Mode Disable if Set Features Disable Reverting to Power On Defaults has not been set. K6610170 Rev.2 Dec 22, 2004 - 47 -