Device Attributes Data Structure; Figure 129. Device Attributes Data Structure; Data Structure Revision Number - IBM DTLA-305040 - Deskstar 41.1 GB Hard Drive Specifications

12.32.12 Device Attributes 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 SMART Read Attribute Values subcommand. All multibyte
fields shown in these data structures are in byte ordering, that is, the least significant byte occupies the
lowest numbered byte address location in the field.
Data Structure Revision Number
1st Device Attribute
...
...
30th Device Attribute
Off-line data collection status
Self-test execution status
Total time in seconds to complete
off-line data collection activity
Vendor specific
Off-line data collection capability
SMART capability
SMART device error logging capability
Self-test failure check point
Short self-test completion time in minutes
Extended self-test completion time in minutes
Reserved
Vendor specific
Data structure checksum

Figure 129. Device Attributes Data Structure

12.32.12.1 Data Structure Revision Number

The Data Structure Revision Number identifies which version of this data structure is implemented by the
device. This revision number identifies both the Attribute Value and Attribute Threshold Data structures.
Description
Deskstar 40GV & 75GXP hard disk drive specifications
Byte
2
12
..
..
12
1
1
2
1
1
2
1
1
1
1
12
125
1
512
169
Offset Value
00h 0010h
02h
15Eh
16Ah
16Bh
16Ch
16Eh
16Fh 1Bh
170h 0003h
172h 01h
173h
174h
175h
176h
182h
1FFh