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Western Digital Hard Disk Drive OEM Specification
11.23.9 Identify Device Data log
IDENTIFY DEVICE data log reports device configuration information. This log is read-only. See table 99 for a list of
defined pages. Each page consists of a header field that is followed by defined statistics fields. If the Revision
Number field in the page header is 0000h, then that page is not supported. All page data following the last defined
statistic for that page is reserved.
Copy of IDENTIFY DEVICE data
Reserved for Parallel ATA
Table 169 Identify Device Data Log
11.23.9.1 List of Supported IDENTIFY DEVICE data log pages
(Page 00h)
IDENTIFY DEVICE data log page 00h contains a list of the supported pages. Entries are in order of ascending page
number (e.g., 00h, 01h, 07h).
IDENTIFY DEVICE data log Information Header. This log page lists the numbers
of the supported log pages
Revision number. Set to 0001h
Number of entries (n) in the following list
Set to zero to indicate that page 00h is supported
Set to one to indicate that page 01h is supported
Page number of nth supported IDENTIFY DEVICE data log page
Table 170 List of supported IDENTIFY DEVICE data pages
11.23.9.2 Copy of IDENTIFY DEVICE data (page 01h)
This page is a copy of IDENTIFY DEVICE data words 0..255.