Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
418
22.3.2.6
Vendor Unique Unit Error Sense Data Descriptor (Byte
48 – 51)
The Vendor Unique Unit Error Code Sense Data Descriptor is stored in bytes 48 through 51 of descriptor format
sense data. Format of the Vendor Unique Unit Error Code Sense Data Descriptor is shown in Table 314.
Table 323 Vendor Unique Unit Error Code Sense Data Descriptor
Byte
Bit
7
6
5
4
3
2
1
0
0
Descriptor Type (80h)
1
Additional Length (02h)
2-3
Unit Error Code (UEC)
Descriptor Type
Set to 80h for Vendor Unique Unit Error Code Sense Data Descriptor.
Additional Length
Set to 02h for Vendor Unique Unit Error Code Sense Data Descriptor.
Unit Error Code:
This field contains the same value as the Vendor Unique Error Information field in fixed
format sense data which gives detailed information about the error (See section 22.2.12
"Vendor unique error information (Byte 20 through 23)
"). It contains a unique code which
describes where the error was detected and which piece of hardware or microcode detected
the error depending on current operation
22.3.2.7
Vendor Unique Physical Error Record Sense Data
Descriptor (Byte 52-59)
The Vendor Unique Physical Error Record Sense Data Descriptor is stored in bytes 52 through 59 of descriptor
format sense data.. Format of the Vendor Unique Physical Error Record Sense Data Descriptor is shown in Table
314 .
Table 324 Vendor Unique Physical Error Record Sense Data Descriptor
Byte
Bit
7
6
5
4
3
2
1
0
0
Descriptor Type (81h)
1
Additional Length (06h)
2-7
Physical Error Record
Descriptor Type
Set to 81h for Vendor Unique Unit Physical Error Record Sense Data Descriptor.
Additional Length
Set to 06h for Vendor Unique Unit Physical Error Record Sense Data Descriptor.
Unit Error Code:
This field is set
the same way as the Physical Error Record in fixed format sense data. (See
section
22.2.13 "Physical Error Record (Product Specific Information) (Byte 24 thru 29)" for
details).