Seagate Medalist ST3636A Product Manual page 78

Chapter 7
Individual Attribute Data Structure
The following defines the twelve bytes that make up the information for each
Attribute entry in the Device Attributes Data Structure.
Table 7-2 - Individual Attribute Data Structure
Description
Attribute ID Number (01
Status Flags
Attribute Value (valid values from 01
Vendor Specific
Attribute ID Numbers
The Attribute ID Numbers and their definitions are shown below. Any non-zero
value in the Attribute ID Number indicates an active attribute. Valid values for
this byte are from 01 hex through FF hex.
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H
Pre-Failure/Advisory bit
Vendor Specific (5 bits)
Reserved (10 bits)
00 : invalid for Attribute value- not to be used
H
01 : minimum value
H
64 : initial value for all attributes prior to any data
H
FD : maximum value
H
FE : value is not valid.
H
FF : invalid for Attribute value not to be used
H
Total Bytes
Attibute ID Description
1 Firm error rate
3 Spin up time
4 Spin up count
5 Retired sectors
7 Seek error rate
10 Spin retries
12 Drive power cycle count
to FF )
H
to FE )
H H
Command Set
Bytes Format
1 binary
2 bit flags
1 binary
8 binary
12
ST3636A/ST31082A/ST31276A
Type
Rd only
Rd only
Rd only
Rd only