Western Digital Ultrastar DC HC310 - Page 285

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Western Digital Hard Disk Drive OEM Specification
11.51.2.10 Self-test completion time
These bytes are the minimum time in minutes to complete self-test.
11.51.2.11 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.