3 – Planning

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Performance

 

 

 

 

 

 

 

 

3.3

Performance

The SANbox2-8c switch supports class 2 and class 3 Fibre Channel service at transmission rates of 1-Gbps or 2-Gbps with a maximum frame size of 2148 bytes. A port can transmit or receive at 1-Gbps or 2-Gbps depending on the device to which it is connected. The port discovers the transmission speed prior to login when the connected device powers up. Related performance characteristics include the following:

„Distance

„Bandwidth

„Latency

3.3.1

Distance

Consider the physical distribution of devices and switches in the fabric. Choose SFP transceivers that are compatible with the cable type, distance, Fibre Channel revision level, and the device host bus adapter. Refer to

Appendix A Specifications for more information about cable types and SFP transceivers.

Each port is supported by a data buffer with a 12 credit capacity; that is, 12 maximum sized frames. For fibre optic cables, this enables full bandwidth over a distance of 20 kilometers at 1-Gbps (0.6 credits/Km), or 10 kilometers at 2-Gbps (1.2 credits/Km). Beyond this distance, however, there is some loss of efficiency because the transmitting port must wait for an acknowledgement before sending the next frame.

Longer distances can be spanned at full bandwidth by extending credits on G_Ports and F_Ports. Each port can donate 11 credits to a pool from which a recipient port can borrow. For example, you can configure a recipient port to borrow up to 66 credits from 6 ports for a total of 78 credits. This will support communication over approximately 130 Km at 1 Gbps (78÷0.6) or 65 Km at 2 Gbps (78÷1.2).

You can configure recipient and donor ports using SANsurfer Switch Manager or the Set Config command. Refer to ”Set Config Command” on page B-33for more information.

3-4

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Q-Logic 2-8C manual Performance, Distance
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2-8C specifications

The Q-Logic 2-8C is a cutting-edge connectivity solution designed for enterprise environments that require robust performance and scalability in storage networking. This versatile product serves as a bridge between various storage devices and servers, ensuring seamless data transfer and high availability across complex IT infrastructures.

One of the standout features of the Q-Logic 2-8C is its advanced Fibre Channel technology. Supporting speeds of up to 32 Gbps, this adapter significantly enhances data transfer rates, allowing businesses to efficiently handle large volumes of information. The high bandwidth capability is particularly beneficial for data-intensive applications, including databases and virtualization environments, where speed and reliability are paramount.

The architecture of the Q-Logic 2-8C is built around a dual-port design, which promotes redundancy and load balancing. This means that even if one port encounters issues, the other can seamlessly take over, ensuring uninterrupted connectivity. Furthermore, the dual-port architecture provides the flexibility to connect to multiple storage arrays, maximizing resource utilization and minimizing downtime.

Another notable feature is the support for advanced management protocols and interoperability standards. The Q-Logic 2-8C is compatible with a wide array of operating systems and virtualization platforms, making it an ideal choice for heterogeneous environments. This broad compatibility ensures that organizations can integrate the adapter with their existing infrastructure without significant modifications, thus preserving their overall investment.

The Q-Logic 2-8C also incorporates sophisticated security features, such as end-to-end data encryption and access control mechanisms. These features are essential in today’s data-sensitive landscape, where organizations face increasing threats from cyberattacks. The added layer of security ensures that data remains protected during transit, giving businesses peace of mind.

In terms of energy efficiency, the Q-Logic 2-8C adheres to modern standards, consuming less power compared to its predecessors. This not only reduces operational costs but also aligns with sustainability initiatives that many organizations are pursuing.

With its powerful combination of speed, reliability, security, and energy efficiency, the Q-Logic 2-8C represents a robust solution for organizations looking to enhance their storage connectivity. Its advanced features cater to the demands of modern data centers, making it a strategic asset for businesses aiming to maintain a competitive edge in the ever-evolving digital landscape.
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