Hitachi HUS154530VLF400 User Manual

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

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Using the SEND DIAGNOSTIC command, an address in either physical or logical format is supplied to the drive. This page is 
then used to retrieve the address translated into the other format.

Page Length is set to 02h if the address is in a Reserved Area (RA =1).  Otherwise, Page Length is set to 06h if the 

Translate Format is Block format, or 0Ah if the Translate Format is Bytes From Index format or Physical Sector for-
mat.

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Supplied Format is the value supplied by the SEND DIAGNOSTIC command; it may be one of the three following 

values:

-   000b Block format

-  100b Bytes From Index format

-  101b Physical Sector format

•

Translate Format is the value supplied by the SEND DIAGNOSTIC command and specifies the format in which the 

address has been translated into List. If the supplied format is the Block format, the Translate format must be either 
Bytes from Index or Physical Sector format. If the supplied format is the Bytes from Index or Physical Sector format, 
the Translate format must be Block format. Otherwise the Target will terminate the command with Check Condition 
status.

RA (Reserved Area) is set to on if the translated block is an inaccessible sector, which could reflect a defect, an 

unused sector on a spare cylinder, or a sector beyond the Maximum Customer LBA. 

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ALTS (Alternate Sector) is set to one if the translated block is a sector in a spare cylinder that points to a reassigned 

customer sector.

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ALTT (Alternate Track) is not used. 

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Translated Address contains the address in the translate format. If it is an LBA, it is contained within the first four 

bytes of the field (bytes 6 to 9) of the page data. For a physical format it is as follows: