Data Structure Checksum - Hitachi 7K100 - Travelstar - Hard Drive Specifications

13.39.3.3 Attribute ID Numbers
Attribute ID Numbers supported by the device are the same as Attribute Values Data Structures.
13.39.3.4 Attribute Threshold
These values are preset at the factory and are not meant to be changeable. However, the host might use the
"S.M.A.R.T. Write Attribute Threshold" subcommand to override these preset values in the Threshold sectors.

13.39.3.5 Data Structure Checksum

The Data Structure Checksum is the 2's compliment of the result of a simple 8-bit addition of the first 511 bytes in
the data structure.
Travelstar 7K100 Hard Disk Drive Specification
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