9.1.9Fibre Channel fabric accept login

Table 12 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.

Table 12: Fabric Login Accept (ACC) payload

Bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-15

02

00

00

00

09

09

BB

BB

CF

XX

FS

FS

R_

A_

T0

V_

Common

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16-31

E_

D_

T0

V_

PN

PN

PN

PN

PN

PN

PN

PN

NN

NN

NN

NN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32-35

NN

NN

NN

NN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36-47

 

 

 

 

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

Class 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48-51

XX

XX

XX

XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

52-63

 

 

 

 

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

Class 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

64-67

XX

XX

XX

XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

68-79

 

 

 

 

SO

SO

xx

xx

XX

XX

FS

FS

XX

xx

XX

XX

Class 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

80-83

OS

OS

XX

XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

84-95

 

 

 

 

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

96-99

XX

XX

XX

XX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100-111

 

 

 

 

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

XX

Vendor -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

112-115

XX

XX

XX

XX

 

 

 

 

 

 

 

 

 

 

 

 

Version

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XIndicates a four-bit (hex) field is not checked.

x Indicates a single bit is not checked.

BB BB-Credit. This field is not checked. The FC-AL drive uses BB-Credit of zero (0).

CF

Common features. This binary field selects the common features requested by the fabric login.

 

MSB

Continuously increasing offset

x

 

 

Random relative offset

x

 

 

Valid version level

x

 

 

N_Port/F_Port

Must = 1, F_Port

 

 

Alternate credit model

Must = 1

 

 

Other bits reserved

xxx XX

FS

Receive buffer field size. The FS field in the common and Class 3 parameters is checked for the range 128 < FS < 2,112 and a

 

multiple of four bytes. The receive buffer field size in the Class 3 parameters is used. The drive uses the lower FS of Fabric

 

Login Accept or N_Port Login when sending frames to an initiator.

PN

Port Name. The fabric port name is saved with the login parameters. If a change of the port name is detected during a FAN, an

 

implicit logout occurs and a LS_RJT is returned to the fabric.

NN

Node Name. The drive does not check or save the node name.

SO

Service Options—Class 3 only.

 

 

MSB

Class valid

Must = 1

 

 

Intermix

x

 

 

Stacked connection req.

xx

 

 

Sequential delivery

Must = 1

 

 

Other bits reserved

xxx XX

46

Barracuda ES.2 FC Product Manual, Rev. B

Page 53 Page 55
Page 54
Image 54
Seagate ES.2 FC, ST31000640FC manual Fibre Channel fabric accept login, Fabric Login Accept ACC payload Bytes
Page 53 Page 55

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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