IBM DTLA-305040 Hard Drive Specifications - Page 186

SMART error log sector, Attribute ID numbers

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12.32.13.3 Attribute ID numbers Attribute I D Numbers supported by the device are the same as Attribute Values Data Structures. 12.32.13.4 Attribute Threshold These values are preset at the factory and are not intended to be changeable. 12.32.13.5 Data Structure Checksum The Data Structure Checksum is the two's compliment of the result of a simple 8-bit addition of the first 511 bytes in the data structure. 12.32.14 SMART error log sector The following figure defines the 512 bytes that make up the SMART error log sector. All multibyte fields shown in these data structures are in byte ordering. Description SMART error log version Error log pointer 1st error log data structure 2nd error log data structure 3rd error log data structure 4th error log data structure 5th error log data structure Device error count Reserved Data structure checksum Byte 1 1 90 90 90 90 90 2 57 1 512 Offset 00h 01h 02h 5Ch B6h 110h 16Ah 1C4h 1C6h 1FFh Figure 133. SMART error log sector 12.32.14.1 SMART error log version This value is set to 01h. 12.32.14.2 Error log pointer This points to the most recent error log data structure. Only values 1 through 5 are valid. 12.32.14.3 Device error count This field contains the total number of errors. The value will not roll over. Deskstar 40GV & 75GXP hard disk drive specifications 174

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12.32.13.3
Attribute ID numbers
Attribute I D Numbers supported by the device are the same as Attribute Values Data Structures.
12.32.13.4
Attribute Threshold
These values are preset at the factory and are not intended to be changeable.
12.32.13.5
Data Structure Checksum
The Data Structure Checksum is the two's compliment of the result of a simple 8-bit addition of the first
511 bytes in the data structure.
12.32.14 SMART error log sector
The following figure defines the 512 bytes that make up the SMART error log sector. All multibyte fields
shown in these data structures are in byte ordering.
512
1FFh
1
Data structure checksum
1C6h
57
Reserved
1C4h
2
Device error count
16Ah
90
5th error log data structure
110h
90
4th error log data structure
B6h
90
3rd error log data structure
5Ch
90
2nd error log data structure
02h
90
1st error log data structure
01h
1
Error log pointer
00h
1
SMART error log version
Offset
Byte
Description
Figure 133. SMART error log sector
12.32.14.1
SMART error log version
This value is set to 01h.
12.32.14.2
Error log pointer
This points to the most recent error log data structure. Only values 1 through 5 are valid.
12.32.14.3
Device error count
This field contains the total number of errors. The value will not roll over.
Deskstar 40GV & 75GXP hard disk drive specifications
174