Deskstar 7K250 Hard Disk Drive Specification
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Table 79: Log Address Definition
Note:
If log address 06h is accessed using the Read Log Ext or Write Log Ext commands, command abort shall be
returned.
The Extended SMART self-test log sector shall support 48-bit and 28-bit addressing. All 28-bit entries contained in
the SMART self-test log sector shall also be included in the Comprehensive SMART self-test log sector with the
48-bit entries.
If the feature set associated with the log specified in the Sector Number register is not supported or enabled, or if
the values in the Sector Count, Sector Number or Cylinder Low registers are invalid, the device shall return com-
mand aborted.
12.18.1 General Purpose Log Directory
The figure below defines the 512 bytes that make up the General Purpose Log Directory.
Table 80: General Purpose Log Directory
The value of the General Purpose Logging Version word shall be 0001h. A value of 0000h indicates that there is no
General Purpose Log Directory.
The logs at log addresses 80-9Fh shall each be defined as 16 sectors long.
Log Address
Content
Feature set
Type
00h
Log directory
N/A
Read Only
03h
Extended Comprehensive SMART error log SMART error logging
Ready Only
06h
SMART self-test log
SMART self-test
See Note
07h
Extended SMART self-test log
SMART self-test
Read Only
80h-9Fh
Host vendor specific
SMART
Read/Write
Description
Bytes
Offset
General purpose logging version
2
00h
Number of sectors in the log at log address 01h (7:0)
1
02h
Number of sectors in the log at log address 01h (15:8)
1
03h
Number of sectors in the log at log address 01h (7:0)
1
04h
Number of sectors in the log at log address 01h (15:8)
1
05h
...
10h sectors in the log at log address 80h (7:0)
1
100h
00h of sectors in the log at log address 80h (7:0)
1
101h
...
Number of sectors in the log at log address FFh (7:0)
1
1FEh
Number of sectors in the log at log address FFh (15:8)
1
1FEh
512
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