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3 – Planning

 

 

Multiple Chassis Fabrics

 

 

 

 

3.4.2

Domain ID, Principal Priority, and Domain ID Lock

The following switch configuration settings affect multiple chassis fabrics:

„Domain ID

„Principal priority

„Domain ID lock

The domain ID is a unique number from 1–239 that identifies each switch in a fabric. The principal priority is a number (1–255) that determines the principal switch which manages domain ID assignments for the fabric. The switch with the highest principal priority (1 is high, 255 is low) becomes the principal switch. If the principal priority is the same for all switches in a fabric, the switch with the lowest WWN becomes the principal switch.

The domain ID lock allows (False) or prevents (True) the reassignment of the domain ID on that switch. Switches come from the factory with the domain ID set to 1, the domain ID lock set to False, and the principal priority set to 254. Refer to the SANbox2-8c/16 Switch Management User’s Guide for information about changing the domain ID and domain ID lock using SANsurfer Switch Manager. Refer to the ”Set Config Command” on page B-33for information about changing the default domain ID, domain ID lock, and principal priority parameters.

An unresolved domain ID conflict means that the switch with the higher WWN will isolate as a separate fabric, and the Logged-In LEDs on both switches will flash green to show the affected ports. If you connect a new switch to an existing fabric with its domain ID unlocked, and a domain ID conflict occurs, the new switch will isolate as a separate fabric. However, you can remedy this by resetting the new switch or taking it offline then back online. The principal switch will reassign the domain ID and the switch will join the fabric.

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 under these conditions, lock the domain IDs using SANsurfer Switch Manager or the Set Config Switch command.

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Q-Logic 2-8C manual Domain ID, Principal Priority, and Domain ID Lock
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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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