Table 19: FC-SCA pin descriptions

Pin

Signal name

Signal type

 

 

 

1*

-EN bypass port A

Low Voltage TTL output

 

 

 

2*

12 Volts

 

 

 

 

3*

12 Volts

 

 

 

 

4*

12 Volts

 

 

 

 

5*

-Parallel ESI

 

 

 

 

6*

Ground[1]

 

7*

Active LED out

Open collector out

 

 

 

8*

Reserved

 

 

 

 

9*

Start_1[2]

TTL input

10*

Start_2[2]

TTL input

11*

-EN bypass port B

Low Voltage TTL output

 

 

 

12*

SEL_6

TTL input/output

 

 

 

13*

SEL_5

TTL input/output

 

 

 

14*

SEL_4

TTL input

 

 

 

15*

SEL_3

TTL input/output

 

 

 

16*

Fault LED out

Open collector out

 

 

 

17*

DEV_CTRL_CODE_2[2]

TTL input

18*

DEV_CTRL_CODE_1[2]

TTL input

19*

5 Volts

 

 

 

 

20*

5 Volts

 

 

 

 

Pin

Signal name

Signal type

 

 

 

21

12 Volts charge

 

 

 

 

22

Ground

 

 

 

 

23

Ground

 

 

 

 

24*

+Port A_in

FC Diff. input pair

 

 

 

25*

-Port A_in

 

 

 

 

26

Ground

 

 

 

 

27*

+Port B_in

FC Diff. input pair

 

 

 

28*

-Port B_in

 

 

 

 

29

Ground

 

 

 

 

30*

+Port A_out

FC Diff. output pair

 

 

 

31*

-Port A_out

 

 

 

 

32

Ground

 

 

 

 

33*

+Port B_out

FC Diff. output pair

 

 

 

34*

-Port B_out

 

 

 

 

35

Ground

 

 

 

 

36

SEL_2

TTL input/output

 

 

 

37

SEL_1

TTL input/output

 

 

 

38

SEL_0

TTL input/output

 

 

 

39

DEV_CTRL_CODE_0[2

TTL input

40

5 Volts charge

 

 

 

 

*Short pins in mating backpanel connector.

[1]This pin may be connected to external logic to detect the presence of the drive. The drive connects this pin to the common ground.

[2]Pins 9, 10, 17, 18, and 39 are option select pins and are tied high by the drive circuitry. The preferred elec- trical connection at the backplane is either open or grounded (open for the ‘1’ setting, grounded for the ‘0’ setting). Alternatively, these pins may be driven by a 3.3V logic device, pulled up to 3.3V through a pull-up resistor (recommended size of 10k ohm), or grounded through some other means.

9.5.5FC-AL transmitters and receivers

A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 9. The receiver is required to provide the AC coupling to eliminate ground shift noise.

TX

Transmitter 100

TY

.01

Differential

Transfer Medium

.01

RX

Receiver 100

RY

Figure 9. FC-AL transmitters and receivers

58

Barracuda ES.2 FC Product Manual, Rev. B

Page 65 Page 67
Page 66
Image 66
Seagate ES.2 FC, ST31000640FC manual FC-AL transmitters and receivers, FC-SCA pin descriptions Pin Signal name Signal type
Page 65 Page 67

ST31000640FC, ES.2 FC specifications

The Seagate ES.2 FC, model ST31000640FC, is a high-performance hard drive designed specifically for enterprise environments. This drive is engineered to provide reliable and efficient data storage, catering to the demands of critical business applications, data centers, and server infrastructures.

One of the standout features of the ST31000640FC is its large storage capacity. With a 1TB capacity, it offers ample space for storing vast amounts of data, making it an excellent choice for businesses that require extensive storage solutions. This capacity enables the drive to support extensive databases, applications, and virtualized environments without compromising performance.

The Seagate ES.2 FC utilizes Fibre Channel (FC) interface technology, which is known for its high-speed data transfer capabilities. Operating at 4 Gbps, this interface facilitates faster communication between the drive and the server, significantly enhancing overall system performance. The Fibre Channel technology also improves data integrity through its ability to manage large amounts of data traffic efficiently.

In terms of performance specifications, the ST31000640FC boasts a rotational speed of 7200 RPM and a sustained data transfer rate that offers quick access to information. Additionally, it features an advanced caching mechanism that optimizes read and write operations, ensuring rapid data retrieval and improved application responsiveness.

The drive's advanced error recovery and data protection mechanisms, such as the Seagate PowerTrim technology, work to minimize downtime and data loss. This is particularly crucial for enterprise applications that demand high availability and reliability. PowerTrim intelligently manages the drive’s internal resources to enhance performance and durability.

Another essential characteristic of the Seagate ES.2 FC is its enterprise-grade reliability. It boasts a mean time between failures (MTBF) rating of 1.2 million hours, indicating its robustness for continuous operation in demanding environments. Furthermore, it is designed to operate in a range of temperatures, ensuring consistent performance across various operational conditions.

Lastly, the Seagate ES.2 FC incorporates vibration tolerance and advanced acoustic performance features, which help to reduce noise and ensure quieter operation in data center environments. This makes it an attractive option for enterprises looking to optimize their infrastructure while minimizing disturbances.

In summary, the Seagate ES.2 FC, ST31000640FC hard drive is an excellent choice for enterprises seeking a balance of large storage capacity, high-speed performance, and reliability in a Fibre Channel environment. With its array of technologies and robust characteristics, it meets the rigorous demands of modern business storage needs.
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