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Exploring Command Abbreviations – Cisco Describing the Cisco Nexus Family and Cisco NX-OS Software
Exploring Command Abbreviations You can abbreviate commands and keywords by entering the first few characters of a command. The abbreviation must include sufficient characters to make it unique from other commands or keywords. If you are having trouble entering a command, check the system prompt and enter the question mark (?) for a list of…
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Hyperconverged Infrastructure (HCI)
Hyperconverged Infrastructure (HCI) Current IT infrastructure weighs data centers down with sluggish arrays of hard-to-manage components, preventing them from keeping up with the quick-turnaround demands of business and the cloud. Hyperconverged Infrastructure (HCI) comes to the rescue here. HCI combines compute, virtualization, storage, and networking in a single cluster. Starting with as few as three…
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Converged Infrastructure
Converged Infrastructure Rapidly changing demand and workload diversity have forced the IT organizations to create large sets of hardware and software components—and spend time integrating them into a workable solution. Cisco Converged Infrastructure is a powerful and unique integration of high-performance computing, networking, and storage coupled with resource and performance management software, multicloud orchestration, and…
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Cisco Unified Computing System (UCS) – Cisco Data Center Architectures
Cisco Unified Computing System (UCS) Cisco UCS combines industry-standard, x86-architecture servers with networking and storage access into a single unified system. The system is flexible, agile, and adaptable, and the portfolio of products supported by Cisco UCS includes blade, rack, multinode, and storage-intensive servers; Converged Infrastructure; Hyperconverged Infrastructure (Cisco HyperFlex systems); and solutions for the…
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Single-Tier Topology – Cisco Data Center Architectures
Single-Tier Topology In single-tier topology, also called collapsed-core topology, servers connect to the core switches, which provide storage services. Storage devices connect to one or more core switches, as shown in Figure 1-6. Core devices have a large number of blades to support initiator (host) and target (storage) ports. High availability is achieved using two…
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Spine-Leaf Network – Cisco Data Center Architectures
Spine-Leaf Network In this two-tier Clos architecture, every lower-tier switch (leaf layer) is connected to each of the top-tier switches (spine layer) in a full-mesh topology. The leaf layer consists of access switches that connect to devices such as servers. The spine layer is the backbone of the network and is responsible for interconnecting all…
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Three-Tier Network: Core, Aggregation, and Access – Cisco Data Center Architectures
Three-Tier Network: Core, Aggregation, and Access The data center is at the foundation of modern software technology, serving a critical role in expanding capabilities for enterprises. The traditional data center uses a three-tier architecture, with servers segmented into pods based on location, as shown in Figure 1-2. Figure 1-2 Traditional Three-Tier Data Center Design…
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Cisco Unified Data Center Platform – Cisco Data Center Architectures
Cisco Unified Data Center Platform A variety of virtualization, computing, storage, and cloud technologies have entered the market to help increase scalability and flexibility in the data center, but each new technology layer introduced makes the data center more complex and less agile. The Cisco Unified Data Center is a comprehensive, fabric-based platform that integrates…
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Standards for Data Center Infrastructure – Cisco Data Center Architectures
Standards for Data Center Infrastructure The most widely adopted standard for data center design and data center infrastructure is ANSI/TIA-942. It includes standards for ANSI/TIA-942-ready certification, which ensures compliance with one of four categories of data center tiers rated for levels of redundancy and fault tolerance: Types of Data Centers Many types of data centers…
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Data Center Basics – Cisco Data Center Architectures
Data Center Basics Before we dig deep into what the different architectures of a data center are, let’s first discuss what a data center is, what its core components are, and what the different types of data centers are. At its simplest, a data center is a physical facility that organizations use to house their…
