∙Any module can plug into any slot and all allocation of modules to networks or channels, regardless of whether they are TriChannel or Shunt Bus, is done by electronic switching (via DIP switches on the modules or management module commands).

Figure 9 shows the Enhanced TriChannel network allocation and how the mixing of various network types affect the availability of the others.

Figure 9. TriChannel Backplane Network Allocation

Using Figure 9 you can see that if, for example, tr_path_8250_3 path is used it eliminates ethernet_path_1, ethernet_path_4, fddi_path_8250_1 and fddi_path_8250_2. If ethernet_path_5 is used it eliminates tr_path_8250_11, tr_path_8250_2 and fddi_path_8250_6.

Figure 10 on page 25 illustrates the possible combinations of the network segments on the ShuntBus. In this diagram, we have shown the token-ring networks as TR 16 thru 25 and FDDI networks as FDDI9 thru 12. This is to provide a distinction between the segments on the Enhanced TriChannel and the ShuntBus for our discussion in this book. However, when you use the management module commands to assign the token-ring modules to the

token-ring segments on the backplane, you will refer to the Enhanced TriChannel segments as token_ring_1 thru 7 and to the ShuntBus segments as token_ring_1 thru 10. In other words, some token-ring segments on the Enhanced TriChannel have identical names to the token-ring segments on the ShuntBus. However, the management module is programmed to realize that when you refer to a

token_ring segment number when issuing a command for the 8250 module, that segment is on the Enhanced TriChannel and when the command is issued for an 8260 module, the referenced segment number is on the ShuntBus. This is, of course, due to the fact that 8250 token-ring modules can only be connected to the Enhanced TriChannel, and the 8260 token-ring modules can only be connected to the ShuntBus.

24 8260 Multiprotocol Intelligent Switching Hub

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IBM 8260 manual TriChannel Backplane Network Allocation
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8260 specifications

The IBM 8260 is a significant entry in the realm of enterprise servers, recognized for its performance, scalability, and robust features designed to cater to demanding business environments. It primarily serves as a high-capacity server for large organizations, capable of handling extensive workloads and complex applications without compromising speed or efficiency.

One of the standout features of the IBM 8260 is its powerful processing capabilities. It typically comes equipped with multiple processor units based on the IBM POWER architecture, which is renowned for its high-performance computing. This architecture allows the server to execute numerous simultaneous tasks, making it ideal for environments that require multitasking and high throughput.

Memory capacity is another key characteristic of the IBM 8260. Depending on the specific configuration, it can support substantial amounts of RAM, ensuring that applications can run effectively without the bottlenecks often associated with data-intensive tasks. This is crucial for enterprises that rely on real-time data analytics, large database management, and resource-heavy applications.

In terms of storage, the IBM 8260 offers flexible options. It supports a variety of storage solutions, including solid-state drives (SSDs) and traditional hard drives, catering to different performance and capacity needs. This scalability in storage helps organizations manage their data effectively while ensuring quick access and retrieval times.

Connectivity is also a prominent feature of the IBM 8260. The server includes advanced networking capabilities, supporting various protocols and technologies that facilitate fast data transfer and communication between devices. This enhances overall network performance, essential for businesses that depend on cloud computing and distributed computing environments.

Additionally, the IBM 8260 is designed with a focus on reliability and availability. It incorporates redundant components, such as power supplies and cooling systems, minimizing the risk of downtime. This is critically important for enterprises that require continuous availability of services.

The server’s management features are also noteworthy. IBM provides a suite of management tools that allow IT administrators to monitor performance, configure hardware settings, and troubleshoot issues seamlessly. This ease of management is bolstered by automation capabilities, enabling organizations to enhance operational efficiency.

In conclusion, the IBM 8260 stands out in the competitive server landscape due to its high processing power, extensive memory and storage options, advanced connectivity, reliability features, and robust management tools. Such attributes make it a viable choice for organizations seeking to enhance their IT infrastructure and streamline their operations effectively.
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