Table 236 Error Log Data Structure; Table 237 Command Data Structure; Table 238 Error Data Structure - Western Digital Ultrastar DC HC310 Specifications

11.51.5.4 Error log data structure
Data format of each error log structure is shown below.
Description
st
1 error log data structure
nd
2 error log data structure
rd
3 error log data structure
th
4 error log data structure
th
5 error log data structure
Error data structure

Table 236 Error log data structure

Command data structure: Data format of each command data structure is shown below.
Description
Device Control register
Features register
Sector count register
Sector number register
Cylinder Low register
Cylinder High register
Device/Head register
Command register
Timestamp (milliseconds from Power On)

Table 237 Command data structure

Error data structure: Data format of error data structure is shown below.
Description
Reserved
Error register
Sector count register
Sector number register
Cylinder Low register
Cylinder High register
Device/Head register
Status register
Extended error data (vendor specific)
State
Life timestamp (hours)

Table 238 Error data structure

Western Digital Hard Disk Drive OEM Specification
Bytes
12
12
12
12
12
30
90
Bytes
1
1
1
1
1
1
1
1
4
12
Bytes
1
1
1
1
1
1
1
1
19
1
2
30
274
Offset
00h
0Ch
18h
24h
30h
3Ch
Offset
00h
01h
02h
03h
04h
05h
06h
07h
08h
Offset
00h
01h
02h
03h
04h
05h
06h
07h
08h
1Bh
1Ch