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3 – Planning

Multiple Chassis Fabrics

 

 

 

 

Note: Domain ID reassignment is not reflected in zoning that is defined by domain ID/port number pair or Fibre Channel address. You must reconfigure zones that are affected by domain ID reassignment. To prevent zoning definitions from becoming invalid, use the Set Config Switch command to lock the domain IDs. Refer to the ”Set Config Command” on page B-24.

3.2.2

Common Topologies

This section describes three commonly used topologies:

Cascade

Mesh

Multistage

3.2.2.1

Cascade Topology

A cascade topology describes a fabric in which the switches are connected in a line. If you connect the last switch back to the first switch, you create a cascade-with-a-loop topology as shown in Figure 3-1. The loop reduces latency because any switch can route traffic in the shortest direction to any switch in the loop. The loop also provides failover should a switch fail.

The cascade fabric shown in Figure 3-1has the following characteristics:

Each chassis link contributes up to 200 MB/s of bandwidth between chassis, 400 MB/s in full duplex. However, because of the sequential structure, that bandwidth will be shared by traffic between devices on other chassis.

Latency between any two ports is no more than three chassis hops.

24 Fibre Channel ports are available for devices.

Figure 3-1. Cascade-with-a-Loop Topology

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Q-Logic SANBOX2-8C manual Common Topologies, Cascade Topology

SANBOX2-8C specifications

The Q-Logic SANBOX2-8C is a high-performance Fibre Channel switch designed for enterprise-level storage area networks (SANs). This product stands out due to its remarkable features and technologies that cater to the evolving demands of data center environments. The SANBOX2-8C is specifically engineered to optimize storage efficiency, enhance performance, and provide a robust infrastructure for various applications.

One of the key features of the SANBOX2-8C is its 8-Gbps Fibre Channel ports, which deliver exceptional bandwidth and reduced latency for critical data transactions. The switch supports a non-blocking architecture, ensuring that data can flow seamlessly across all connected devices without bottlenecks. This architecture is crucial for organizations that require high availability and reliability, such as those in the financial sector or healthcare industries.

Another significant characteristic of the SANBOX2-8C is its scalability. With support for multiple interconnectivity options, the switch can easily be expanded to accommodate growing storage needs. Users can integrate additional ports as demand increases without necessitating a complete infrastructure overhaul. This flexibility makes the SANBOX2-8C an attractive investment for organizations looking to future-proof their SAN.

Moreover, the SANBOX2-8C is equipped with advanced management tools that simplify network configuration and monitoring. Features such as automatic zoning and path management enhance the overall performance and security of the storage network. Integrated diagnostic tools help identify and troubleshoot issues swiftly, reducing downtime and optimizing operational efficiency.

The switch also incorporates cutting-edge technologies, including Quality of Service (QoS) capabilities that prioritize critical data traffic. This ensures that mission-critical applications receive the bandwidth they need, regardless of overall network load. Additionally, with support for virtualized environments, the SANBOX2-8C is well-suited for organizations leveraging cloud technologies or virtualization solutions, enabling efficient resource allocation and management.

Overall, the Q-Logic SANBOX2-8C is a robust Fibre Channel switch that combines high performance, scalability, and advanced management features. Its ability to adapt to dynamic environments while ensuring high availability and data integrity makes it an ideal choice for businesses aiming to enhance their storage networks. With these technologies and characteristics, the SANBOX2-8C remains a leading solution in the SAN infrastructure market.