Hitachi HUS154530VLF400 ユーザーズマニュアル

                   

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

171   

Each mode page contains a page code, a page length, and a set of mode parameters.

When using the MODE SENSE command, a Parameter Savable (PS) bit of one indicates that the mode page can be saved by 
the drive in the reserved area of the drive. A PS bit of zero indicates that the supported parameters cannot be saved. When 
using the MODE SELECT command, the PS bit is reserved (zero).

SPF (Sub-Page Format) is set to zero to indicate the short page format is used. The bit is set to one to indicate the long format 
is used, supporting sub-pages. The drive supports the following mode page codes:

The page length field specifies the length in bytes of the mode parameters that follow. If the Initiator does not set this value to 
the value that is returned for the page by the MODE SENSE command, the drive will terminate the command with Check Con-
dition status.