What is inside a Data Center?

What is inside a data center? Most enterprise data center infrastructure falls into three broad categories: Compute Storage Network Also, data center equipment includes support infrastructure like power systems, which help the main equipment function effectively. Computing infrastructure Computing resources include several types of servers with varying internal memory, processing power, and other specifications. We give some examples below. Rack servers Rack servers have a flat, rectangular design, and you can stack them in racks or shelves in a server cabinet. The cabinet has special features like mesh doors, sliding shelves, and space for other data center resources like cables and fans. Blade servers A blade server is a modular device and you can stack multiple servers in a smaller area. The server itself is physically thin and typically only has memory, CPUs, integrated network controllers, and some built-in storage drives. You can slide multiple servers into a storage unit called a chassis. The chassis facilitates any additional components that the servers inside it require. Blade servers take up less space than rack servers and offer higher processing speed, minimal wiring, and lower power consumption. Storage infrastructure The following are two types of data center storage systems. Block storage devices Block storage devices like hard drives and solid-state drives store data in blocks and provide many terabytes of data capacity. Storage area networks (SANs) are storage units that contain several internal drives and act as large block storage systems. File storage devices File storage devices, like network-attached storage (NAS), can store a large volume of files. You can use them to create image and video archives. Network infrastructure A large number of networking devices, such as cables, switches, routers, and firewalls connect other data center components to each other and to end-user locations. They provide flawless data movement and connectivity across the system. Support infrastructure Data centers also contain these components: Power subsystems Uninterruptible power supplies (UPS) Backup generators Ventilation and cooling equipment Fire suppression systems Building security systems These data center components support the main equipment so that you can use the data center facilities without interruption. What are the standards in data center design? As data centers increased in size and complexity and began to store sensitive and critical information, governments and other organizations imposed regulations on them. The Telecommunications Industry Association (TIA) established four levels or standards that cover all aspects of data center design, including: Architecture and topology Environmental design Power and cooling systems and distribution Cabling systems, pathways, and redundancy Safety and physical security Similarly, the Uptime Institute established four tiers to compare site performance objectively and align infrastructure investments to business goals. We list the four data center tiers below. Tier I A Tier I data center is the basic capacity level to support IT systems for an office setting and beyond. Some of the requirements for a Tier I facility include: Uninterruptible power supply (UPS) for power outages and spikes A physical area for IT systems Dedicated cooling equipment that runs 24/7 A backup power generator Tier I protects against service disruptions from human error but not against unexpected failure or outage. You can also expect an annual downtime of 29 hours in Tier I data centers. Tier II Tier II facilities provide additional cooling components for better maintenance and safety against disruptions. For example, these data centers must have the following: Engine generators Chillers Cooling units Pumps Although you can remove components from Tier II data centers without shutting them down, unexpected failures can affect the system. You can expect an annual downtime of 22 hours from a Tier II data center. Tier III Tier III data centers provide greater data redundancy, and you can maintain or replace equipment without system shutdown. They also implement redundancy on support systems like power and cooling units to guarantee only 1.6 hours of annual downtime. Tier IV Tier IV data centers contain several physically isolated systems to avoid disruption from both planned and unplanned events. They are completely fault-tolerant with fully redundant systems and can guarantee a downtime of only 26 minutes each year.