Seagate ST320005N4A1AS Barracuda 7200.10 SATA Product Manual - Page 48

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Barracuda 7200.10 Serial ATA Product Manual, Rev. K

3.2

Configuring the drive

Each drive on the Serial ATA interface connects point-to-point with the Serial ATA host adapter. There is no

master/slave relationship because each drive is considered a master in a point-to-point relationship. If two

drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they

were both “masters” on two separate ports. Both drives behave as if they are Device 0 (master) devices.

Serial ATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive

for proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA-

equipped motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation. If

you have a motherboard or host adapter that does not support autonegotiation:

•

Install a jumper as shown in Figure 3 below to limit the data transfer rate to 1.5 Gbits per second (and leave

the drive connected to the SATA-equipped motherboard or host adapter that doesn’t support autonegotiation)

or

• Install a SATA host adapter that supports autonegotiation, leave the drive jumper block set to “Normal

operation” (see Figure 3 below), and connect the drive to that adapter. This option has the benefit of not limiting

the drive to a 1.5 Gbits/sec transfer rate.

Figure 3. Serial ATA connectors

3.3

Serial ATA cables and connectors

The Serial ATA interface cable consists of four conductors in two differential pairs, plus three ground connec-

tions. The cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 15

for connector pin definitions. Either end of the SATA signal cable can be attached to the drive or host.

For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive

and the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind

mateable.

For installations which require cables, you can connect the drive as illustrated in Figure 4.

Figure 4. Attaching SATA cabling

Each cable is keyed to ensure correct orientation. Barracuda 7200.10 Serial ATA drives support latching SATA

connectors.

Jumper block

SATA interface connector

SATA power connector

Limit data transfer rate to

1.5 Gbits per second

3.0 Gbits per second operation

Power cable

Signal cable

Signal connector

Power connector

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	32
2.2.1 LBA mode	32
2.3 Default logical geometry	32
2.4 Recording and interface technology	33
2.5 Physical characteristics	34
2.6 Seek time	35
2.7 Start/stop times	35
2.8 Power specifications	36
2.8.1 Power consumption	36
2.8.1.1 Typical current profiles	37
2.8.2 Conducted noise	37
2.8.3 Voltage tolerance	37
2.8.4 Power-management modes	38
2.9 Environmental specifications	39
2.9.1 Ambient temperature	39
2.9.2 Temperature gradient	39
2.9.3 Humidity	39
2.9.3.1 Relative humidity	39
2.9.3.2 Wet bulb temperature	39
2.9.4 Altitude	39
2.9.5 Shock	39
2.9.5.1 Operating shock	39
2.9.5.2 Nonoperating shock	40
2.9.6 Vibration	40
2.9.6.1 Operating vibration	40
2.9.6.2 Nonoperating vibration	40
2.10 Acoustics	41
2.10.1 Test for Prominent Discrete Tones (PDTs)	41
2.11 Electromagnetic immunity	42
2.12 Reliability	43
2.12.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)	43
2.13 Agency certification	43
2.13.1 Safety certification	43
2.13.2 Electromagnetic compatibility	43
2.13.3 FCC verification	44
2.14 Environmental protection	45
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive	45
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive	45
2.15 Corrosive environment	45
3.0 Configuring and mounting the drive	47
3.1 Handling and static-discharge precautions	47
3.2 Configuring the drive	48
3.3 Serial ATA cables and connectors	48
3.4 Drive mounting	49
4.0 Serial ATA (SATA) interface	51
4.1 Hot-Plug compatibility	51
4.2 Serial ATA device plug connector pin definitions	52
4.3 Supported ATA commands	53
4.3.1 Identify Device command	55
4.3.2 Set Features command	59
4.3.3 S.M.A.R.T. commands	60
5.0 Seagate Technology support services	61
Index	63
A	63
B	63
C	63
D	63
E	63
F	63
G	63
H	63
I	64
K	64
L	64
M	64
N	64
O	64
P	64
Q	64
R	64
S	65
T	65
U	65
V	65

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