Hitachi HTS541040G9AT00 Specifications - Page 188

Device Attribute Data Structure

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13.39.2 Device Attribute Data Structure The following defines the 512 bytes that make up the Attribute Value information. This data structure is accessed by the host in its entirety using the S.M.A.R.T. Read Attribute Values subcommand. All multibyte fields shown in these data structures follow the ATA/ATAPI-6 specification for byte ordering, namely, that the least significant byte occupies the lowest numbered byte address location in the field. Table 119: Device Attribute Data Structure Description Byte Data Structure Revision Number 2 1st Device Attribute 12 ... 30th Device Attribute 12 Off-line data collection status 1 Self-test execution status 1 Total time in seconds to complete off-line data 2 collection activity Current segment pointer 1 Off-line data collection capability 1 S.M.A.R.T. capability 2 S.M.A.R.T. device error logging capability 1 Self-test failure check point 1 Short self-test completion time in minutes 1 Extended self-test completion time in minutes 1 Reserved 12 Vendor specific 125 Data structure checksum 1 512 Offset 00h 02h Format binary (*1) Value 0010h (*2) 15Eh 16Ah 16Bh 16Ch 16Eh 16Fh 170h 172h 173h 174h 175h 176h 182h 1FFh (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*1) (*2) (*2) (*2) (*2) (*2) 1Bh 0003h 01h (*2) (*2) (*2) (*3) (*3) (*2) (*1) - See following definitions (*2) - This value varies due to actual operating condition. (*3) - Filled with 00h. 13.39.2.1 Data Structure Revision Number The Data Structure Revision Number identifies which version of this data structure is implemented by the device. This revision number will be set to 0005h. This revision number identifies both the Attribute Value and Attribute Threshold Data structures. Travelstar 5K100 Hard Disk Drive Specification 174

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Travelstar 5K100 Hard Disk Drive Specification
174
13.39.2
Device Attribute Data Structure
The following defines the 512 bytes that make up the Attribute Value information. This data structure is accessed
by the host in its entirety using the S.M.A.R.T. Read Attribute Values subcommand. All multibyte fields shown in
these data structures follow the ATA/ATAPI-6 specification for byte ordering, namely, that the least significant byte
occupies the lowest numbered byte address location in the field.
Table 119: Device Attribute Data Structure
(*1) – See following definitions
(*2) – This value varies due to actual operating condition.
(*3) – Filled with 00h.
13.39.2.1
Data Structure Revision Number
The Data Structure Revision Number identifies which version of this data structure is implemented by the device.
This revision number will be set to 0005h. This revision number identifies both the Attribute Value and Attribute
Threshold Data structures.
Description
Byte
Offset
Format
Value
Data Structure Revision Number
2
00h
binary
0010h
1st Device Attribute
12
02h
(*1)
(*2)
...
30th Device Attribute
12
15Eh
(*1)
(*2)
Off-line data collection status
1
16Ah
(*1)
(*2)
Self-test execution status
1
16Bh
(*1)
(*2)
Total time in seconds to complete off-line data
collection activity
2
16Ch
(*1)
(*2)
Current segment pointer
1
16Eh
(*1)
(*2)
Off-line data collection capability
1
16Fh
(*1)
1Bh
S.M.A.R.T. capability
2
170h
(*1)
0003h
S.M.A.R.T. device error logging capability
1
172h
(*1)
01h
Self-test failure check point
1
173h
(*1)
(*2)
Short self-test completion time in minutes
1
174h
(*1)
(*2)
Extended self-test completion time in minutes
1
175h
(*1)
(*2)
Reserved
12
176h
(*3)
Vendor specific
125
182h
(*3)
Data structure checksum
1
1FFh
(*1)
(*2)
512