Seagate STM303004N1AAAS-RK DiamondMax 21 SATA Product Manual - Page 48

42

DiamondMax 21 Serial ATA Product Manual, Rev. C

4.3.3

S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disc drives. When S.M.A.R.T. is enabled, the drive moni-

tors predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines

that a failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable.

S.M.A.R.T. predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T.

commands and implementation, see the

Draft

ATA-5 Standard.

This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that

supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the

drive uses.

Note.

If an appropriate code is not written to the Features Register, the command is aborted and 0

x

04

(abort) is written to the Error register.

Table 13:

S.M.A.R.T. commands

Code in features register

S.M.A.R.T. command

D0

H

S.M.A.R.T. Read Data

D2

H

S.M.A.R.T. Enable/Disable Attribute Autosave

D3

H

S.M.A.R.T. Save Attribute Values

D4

H

S.M.A.R.T. Execute Off-line Immediate (runs DST)

D5

H

S.M.A.R.T. Read Log Sector

D6

H

S.M.A.R.T. Write Log Sector

D8

H

S.M.A.R.T. Enable Operations

D9

H

S.M.A.R.T. Disable Operations

DA

H

S.M.A.R.T. Return Status

Section	Page
1.0 Introduction	7
1.1 About the Serial ATA interface	8
2.0 Drive specifications	9
2.1 Specification summary tables	9
2.2 Formatted capacity	22
2.2.1 LBA mode	22
2.3 Default logical geometry	22
2.4 Recording and interface technology	23
2.5 Physical characteristics	24
2.6 Seek time	25
2.7 Start/stop times	25
2.8 Power specifications	25
2.8.1 Power consumption	26
2.8.1.1 Typical current profiles	27
2.8.2 Conducted noise	27
2.8.3 Voltage tolerance	27
2.8.4 Power-management modes	28
2.9 Environmental specifications	29
2.9.1 Ambient temperature	29
2.9.2 Temperature gradient	29
2.9.3 Humidity	29
2.9.3.1 Relative humidity	29
2.9.3.2 Wet bulb temperature	29
2.9.4 Altitude	29
2.9.5 Shock	29
2.9.5.1 Operating shock	29
2.9.5.2 Nonoperating shock	30
2.9.6 Vibration	30
2.9.6.1 Operating vibration	30
2.9.6.2 Nonoperating vibration	30
2.10 Acoustics	31
2.11 Electromagnetic immunity	31
2.12 Reliability	32
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	32
2.13 Agency certification	32
2.13.1 Safety certification	32
2.13.2 Electromagnetic compatibility	32
2.13.3 FCC verification	33
2.14 Environmental protection	34
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive	34
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive	34
2.15 Corrosive environment	34
3.0 Configuring and mounting the drive	35
3.1 Handling and static-discharge precautions	35
3.2 Configuring the drive	36
3.3 Serial ATA cables and connectors	36
3.4 Drive mounting	37
4.0 Serial ATA (SATA) interface	39
4.1 Hot-Plug compatibility	39
4.2 Serial ATA device plug connector pin definitions	40
4.3 Supported ATA commands	41
4.3.1 Identify Device command	43
4.3.2 Set Features command	47
4.3.3 S.M.A.R.T. commands	48
5.0 Maxtor support services	49
Index	51
A	51
B	51
C	51
D	51
E	51
F	51
G	51
H	51
I	52
K	52
L	52
M	52
N	52
O	52
P	52
Q	52
R	52
S	53
T	53
U	53
V	53

Seagate STM303004N1AAAS-RK DiamondMax 21 SATA Product Manual - Page 48

S.M.A.R.T. commands, Table 13

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