What Is Data Center Architecture?
What Is Data Center Architecture?
A data center is a physical facility that supports an enterprise's computing activities, which realizes centralized processing, storage, transmission, exchange, and management of information. Data center architecture, as an architectural design that establishes connections between switches and servers, is typically created during the data center design and construction phases. Besides, it designates the way that the server, storage networking, racks, and other data center resources will be placed and also addresses the interconnection of these devices.
Typical Composition of Data Center Architecture
The data center architecture mainly consists of three parts: data center network, security, and computing architecture. Apart from these three, there are some other data center architectures, such as data center physical architecture and data center information architecture. The following will mainly interpret three typical compositions of it.
Data center network architecture: Data center network (DCN) is an arrangement of network devices that interconnect all data center resources together, which has always been a key research area for Internet companies and large cloud computing companies. Therefore, data center network architecture plays a vital role in data center architecture.
It usually consists of switches and routers in a two- or three-level hierarchy. For example, three-tier DCN, fat tree DCN, DCell, and other types. Besides, the scale, scalability, robustness, and reliability of the data center network architecture have always been the focus of attention.
Data center security architecture: Data center security refers to physical practices and virtual technologies for protecting data centers from threats, attacks, and unauthorized access. Data center security architecture mainly includes two aspects: physical security and software security. Enterprises can protect data centers from attack by setting up a strong firewall between the external traffic and the internal network.
Data center computing architecture: Data center computing architecture is one of the most important parts of data center architecture, which plays a huge role in the high-efficient use of resources, reducing capital expenditure (CAPEX) costs, and rapid deployment and scalability. Here we will elaborate on the data center network architecture in detail.
Data Center Network Architecture Evolution
With the changing times, the data center is constantly changing and developing, which also promotes the evolution of the network architecture to meet the growing business needs. Currently, most modern data center network architectures have evolved from on-premises physical servers to a virtualized infrastructure supporting networks, applications, and workloads in multiple private and public clouds. The high-performance computing network architecture also has higher and higher requirements for the data network structure.
Types of Data Center Architecture
Typically, there are four kinds of data center architecture: meshwork, three-tier or multi-tier model, mesh point of delivery (PoD), and super spine mesh.
The mesh network architecture, a kind of data center architecture, usually regarded as the network fabric, describes the network topology in which components pass data to each other through interconnecting switches. With predictable capacity and lower latency, it can support common cloud services. Besides, because of its distributed network designs, the mesh network can easily realize any connection and be more cost-effective in terms of network deployment.
Three-tier or Multi-tier Model
The multi-tier architecture has been the most commonly deployed model of data center architecture used in the enterprise data center, consisting of core, aggregation, and access layers.
Data center core layer: It provides a fabric for high-speed packet switching between multiple aggregation modules and connectivity to multiple aggregation modules.
Data center aggregation layer: It supports functions like service module integration, layer 2 domain definitions, spanning tree processing, and default gateway redundancy.
Data center access layer: It provides the physical level attachment to the server resources and operates in layer 2 or layer 3 modes. What's more, it plays an important role in meeting particular server requirements such as NIC teaming, clustering, and broadcast containment.
Mesh Point of Delivery
The mesh point of delivery (PoD) architecture contains multiple leaf switches interconnected within the PoDs. It is a repeatable design pattern and its components maximize the modularity, scalability, and manageability of data centers. Besides, this architecture can realize the efficient connection between multiple PoDs and a super-spine tier. Therefore, data center managers can add new data center architecture to their existing three-tier topology easily for the low-latency data flow of new cloud applications.
The benefits of the mesh of delivery point architecture include:
By separating different parts of the application, deployment units and delivery points can be easily added or removed for flexible deployment and scaling.
The delivery point has high reliability, is able to handle a large number of requests, and is able to quickly recover in the event of failures.
The delivery point can be configured and customized according to different requirements to achieve the best performance and availability.
The trends of the mesh delivery point architecture include:
Virtualization is the foundation of the mesh delivery point architecture, which can virtualize physical computing, storage, and network resources into multiple virtual, independent resource pools, enabling more efficient resource management and allocation.
The mesh delivery point architecture enables more efficient resource management and scheduling through automation and intelligence.
The mesh delivery point architecture can flexibly provide different cloud computing services according to the needs of users, and realize the seamless switching and management of multi-cloud and hybrid cloud.
Super Spine Mesh
Just as its name shows, super spine architecture is suitable for large-scale or campus-style data centers. This type of data center architecture services huge amounts of data passing from east to west through data halls.
Considerations of Data Center Network Architecture
As you can see, there are numerous benefits and drawbacks to each type of data center network architecture. Additionally, there is room for experimenting with software, hardware devices, and their connections within each type of infrastructure. Consider these factors when selecting a technology for your data center network architecture:
Considering the quantity of data that you are processing. To begin, this may assist you in selecting the appropriate architectural type. For instance, projects that rely on relatively small amounts of data are ideal for legacy infrastructure. Second, using this information, you will be able to select a solution type based on the specified amount of disk space.
Scalability. Will your business scale up operations? For example, a typical converged infrastructure is a perfect solution for small scales, but can not efficiently allocate its capacity at scale. At the same time, hyperconverged infrastructure is ideal for rapid growth—it. It allows capacity to be expanded just by adding new nodes.
Lock-in of suppliers. Is there a data center hardware and software provider (or multi-provider partnership) that can meet all your infrastructure needs? Or does your case require the construction of a unique solution? You can consider some professional suppliers, such as FS.com, they provide high-performance computing network solutions to help you achieve a reliable network.
Available manpower and learning curve. Do you need to assess whether you have the expertise to build, deploy and maintain a data center? If not, you must determine how much new technology your team must learn to run the infrastructure.
These aren't the only things you need to consider in developing the right technology strategy for your data center. It's also important to understand whether it's really worth building a data center at your facility or doing network infrastructure upgrades and expansions.