Stack Operations 2

the Master button is not depressed on any unit. The stack reboots and resumes operations. However, note that the IP address will be the same for any common VLANs (with active port connections) that appear in both of the new stack segments. To resolve the conflicting IP addresses, you should manually replace the failed link or unit as soon as possible. If you are using a wrap-around stack topology, a single point of failure in the stack will not cause the stack to fail. It would take two or more points of failure to break the stack apart.

Note: If a stack breaks apart, the IP address will be the same for any common VLANs (with active port connections) that appear in both stack segments.

Resilient IP Interface for Management Access

The stack functions as one integral system for management and configuration purposes. You can therefore manage the stack through any IP interface configured on the stack. The Master unit does not even have to include an active port member in the VLAN interface used for management access. However, if the unit to which you normally connect for management access fails, and there are no active port members on the other units within this VLAN interface, then this IP address will no longer be available. To retain a constant IP address for management access across fail over events, you should include port members on several units within the primary VLAN used for stack management.

Resilient Configuration

If a unit in the stack fails, the unit numbers will not change. This means that when you replace a unit in the stack, the original configuration for the failed unit will be restored to the replacement unit. This applies to both the Master and Slave units.

Renumbering the Stack

The startup configuration file maps configuration settings to each switch in the stack based on the unit identification number. If the units are no longer numbered sequentially after several topology changes or failures, you can reset the unit numbers using the “Renumbering” command in the web interface or CLI. Just remember to save the new configuration settings to a startup configuration file prior to powering off the stack Master.

Stack Limitations

Maximum Stack Size – You can stack up to eight units as long as total number of switch ASIC chips is less than 32. Both the ES4625 and ES4649 use one ASIC chip for each 12 ports and one ASIC for the optional module. If no optional modules are installed, then you can stack up to eight ES4625 or ES4649 units in any combination. However, if you install an optional module, then there will be three switch ASICs active in a ES4625 or five switch ASICs active in a ES4649. For example, if you build a stack of ES4649 switches with an optional module installed in each switch, then the maximum number of units that can be stacked together is six, because 30 switch ASICS will be active in a stack of this size.

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Microsoft ES4649, ES4625 manual Renumbering the Stack, Stack Limitations

ES4649, ES4625 specifications

The Microsoft ES4625 and ES4649 are advanced enterprise-grade servers designed to meet the demands of modern data centers. They blend cutting-edge technology with robust performance, making them an ideal choice for businesses that require reliable processing capabilities, enhanced storage solutions, and improved energy efficiency.

One of the standout features of the ES4625 is its powerful processing capability. Equipped with the latest Intel Xeon Scalable processors, the server can handle a significant workload, making it suitable for various applications, including virtualization, cloud computing, and big data analytics. The multi-core architecture allows for efficient parallel processing, thereby improving response times and overall system performance.

On the other hand, the ES4649 offers an even more powerful setup, with the option to support high core counts and a larger memory footprint. This feature is particularly beneficial for enterprises that run demanding applications requiring substantial processing power and memory capacity. Both models support DDR4 memory, ensuring faster data access and overall system efficiency.

Storage adaptability is another key characteristic of these servers. The ES4625 and ES4649 come with multiple drive bays supporting various storage options, including SSDs and traditional HDDs. This flexibility allows organizations to configure their storage according to their specific performance and capacity needs. With support for advanced storage technologies like NVMe, enterprises can achieve unparalleled data transfer speeds, which is crucial for data-intensive applications.

In terms of manageability, both models are equipped with Microsoft’s innovative management tools. The integration of these tools facilitates easy monitoring, troubleshooting, and maintenance of server health and performance, significantly reducing downtime. Moreover, the servers are designed with enhanced security features to protect against unauthorized access and data breaches, ensuring that sensitive information remains secure.

Energy efficiency is another critical characteristic of the ES4625 and ES4649. These servers are designed with power-saving technologies that reduce energy consumption without compromising performance. This aspect is particularly advantageous for businesses looking to lower their operational costs and carbon footprint.

Overall, the Microsoft ES4625 and ES4649 offer a compelling combination of performance, flexibility, and security. They are engineered to support the increasingly complex demands of modern enterprise environments, making them a valuable investment for organizations seeking reliable, high-performing server solutions. Whether for virtualized workloads, cloud services, or heavy data computations, these servers are designed to deliver exceptional results.